What is the perimeter of rectangle that has a length of 8x - 12 and a width of 3x + 15?

BRAINLIEST AND 13 points plz help ASAP
A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.
In which step did the student first make a mistake and how can it be corrected?
Step 1; it should be m∠m + m∠n + m∠o = 180 degrees (sum of angles in a triangle)
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (adjacent angles)
Step 2; it should be m∠o + m∠p = 180 degrees (alternate exterior angles)
Step 2; m∠p − m∠o = 90 degrees (alternate interior angles)

What is the mixed number that matches this model?

Jerri was using a recipe for a large cake that required one-fourth of a tablespoon of cinnamon. Instead of making one large cake, Jerri decided to use the recipe to make three small cakes. How much cinnamon should she use for each of the three small small cakes?

Solve both please 7th grade math

Mary bikes 2.5 miles in 10 minutes. At this rate, how long will it take her to finish a 25-mile race?

Question one (first one on the right) choices are...
9 cm
11 cm
10 cm
13 cm
Question 2 choices are...
22.5 cm
25 cm
32.5 cm
50 cm
Question 3 choices are...
2
2.5
3
3.5
6

2.89x3 7.6x2 16.2x4 30.5x4

I really need help with these. I’m not sure if the answer for number 4 is right either . Ty ✨

Round steak costs $6.95 per pound. Sara wants to buy 9.5 pounds of round steak which she estimates will cost $54. Which statement about Sara’s estimate is true?

Jennifer jogged 4 miles
every day to train for a
race. How many miles did
she run in 8 days? Show
the constant rate of
change on the graph
included on your answer
document to prove your
answer.

19 3/5 as a decimal SHOW YOUR WORK ALSO PLS!!!!

Sari applied the distributive property using the greatest common factor to determine the expression that is equivalent to 84 +40. Her work is shown below.

Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40

84 + 40 = 2 (42 + 20)

What statement best describes Sari’s error?
Sari did not use correct factors for 84 in the equation.
Sari did not use correct factors for 40 in the equation.
Sari did not use two equivalent expressions in the equation.
Sari did not use the greatest common factor in the equation.

a.Find three different ratios that are equivalent to the ratio .
b.Explain why your ratios are equivalent.

he graph shows the number of boxes a machine package over time is the relationship proportional how many boxes does the machine package in 4 minutes

PLZZZ HELP ME OUT THIS DUE RIGHT NOW AND I FREAKING OUT PLEASE HELP ME P.S YOU HAVE WRITE ANSWERS FOR ALL OF THEM

Task 1 – Operations on the Number Line
(Variation of the above task)
A number line is shown below. The numbers 0 and 1are marked on the line, as are two other numbers a and b.

For each of the following expressions determine if the answer would be positive, negative, or zero. For each one PROVE HOW YOU KNOW.

1. a−1

Answer:
Explanation:








2. a−2

Answer:
Explanation:







3. b−1

Answer:
Explanation:









4. -b−b

Answer:
Explanation:









5. a−b
Answer:
Explanation:








6. ab+1
Answer:
Explanation:








7. b− a
Answer:
Explanation:








8. a a-b x b

Answer:
Explanation:

PLZZZZZZZZZZZZZ HELP ME I BEGGING YOU!!!PLZ EXAMPLAIN AND ANSWER THEM ALL DUE TODAY!!!!

1 question is first image


2 question is second image


3 question is third image


4 question is fourth image


5 question is fifth image

please help with the question

plz help me plz help me plz plz plz

Olivia is making bead bracelets for her friends. She can make 3 bracelets in 15 minutes.

Now find the constant of proportionality in terms of number of bracelets per minute.

What does the point (0, 35) represent?

continue to halllllllllp

The two plots below show the heights of some sixth graders and some seventh graders:

Two dot plots are shown one below the other. The title for the top dot plot is Sixth Graders and the title for the bottom plot is Seventh Graders. Below the line for each dot plot is written Height followed by inches in parentheses. There are markings from 52 to 57 on the top line and the bottom line at intervals of one. For the top line there are 2 dots above the first mark, 1 dot above the second mark, 1 dot above the third mark and 2 dots above the fourth mark. For the bottom line, there is 1 dot above the third mark, 1 dot above the fourth mark, 3 dots above the fifth mark and 1 dot above the sixth mark.

The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 0.8. Approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (Round all values to the tenths place.)
Group of answer choices

1.5

2.2

3.0

4.6

Help me answer both questions plz I will be so happy if you did!

there are 850 seats in the concert hall. there are 36 reserved seats. Tickets have been sold for 1/3 of the remaining seats. How many seats that were NOT reserved will be used,assuming everyone who purchased a ticket attends?

Figure A is a scale image of Figure B. What is the value of x?
figure A 10,x
figure B 25,10

Help please ASAP please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Select all the ratios that are equivalent to each other.
16:28
8:15
20:35
4:7
2:3

After 8 hours of snow, the temperature dropped by 16 degrees. What was the average change in temperature each hour while it was snowing?

On a farm, the farmer decides to give pizza to her 15 ducks as a special treat. She orders 3 pizzas, and the total price is $23.46. What is the unit price of each pizza? (4 points)

Group of answer choices

$70.38

$5.00

$1.56

$7.82

Juan and Gloria are comparing the two numbers 354.6 and 354.06. Juan says that 354.06 is equal to 10 x 354.6. Gloria says he is wrong. Do you agree with Juan or Gloria? Explain your thinking.