como puedo identificar el tema, la idea principal y la idea principal de un texto?

what is the purpose of a heading and what is the purpose of a subheading. I NEED TO KNOW ASAP!!!!! Pls make it two different answers and not just one Write an expression for the perimeter of the triangle shown below: The answer choices are: 6.9x 16 6.9x + 16 0.1x 16 0.1x + 16 1. If two parallel lines are cut by a transversal, then alternate interior angles are congruent 2. If two parallel lines are cut by a transversal, then corresponding angles are congruent 3. If two parallel lines are cut by a transversal, then alternate exterior angles are congruent 4. If two parallel lines are cut by a transversal, then complementary angles are congruent PLEASE HELP: What translation vector translates A(2,7) to A(5,1)?A. (3,-6)B. (7,-8)C. (3,6)D. (-7,8) for each recursive sequences below, find a recursive formula for the general term:e. 2, 3, 6, 18, 108, 1944, ...f. 1, 2, 6, 24, ...im not sure how to figure these out! please actually answer and give step by step explanation, i will mark brainliest if correct. which phrase best describes olaudah equiano During prophase, the nuclear membrane isfully formed.breaking down.completely gone.B. breaking down what are 15 things we get from plants? Simply -7i x (-8i)Will give brainiest to the best one Tina is saving to buy a notebook computer. She has two options. The first option is to put $300 awayinitially and save $30 every month. The second option is to put $200 away initially and save $50 everymonth. After how many months would Tina save the same amount using either option? How muchwould she save with either option?Plzzz hellpppp Carnivores have sharp, pointed teeth that allow them to tear flesh from prey. What type of adaptation is this?A) behaviorB) biochemicalC) structuralD) ecological What natural resource is mined in the Easter alpsof Austria what will be the net force of the object if a boy and a girl pull the heavy crate at the same time in opposite direction with 20 units and 10 units of force respectively when the object? move to what direction will it move?what will be the night force of the object if a boy and a girl pull the heavy crate at the same time in opposite direction with 20 units and 10 units of force respectively? will the object move? to what direction will it move ? Why cant you drink salt water?A: Its isotonic to your cells B: its hypertonic to your cellsC: its paratonic to your cellsD: its hypotonic to your cells It's time to show off the Spanish skills you've been working on. With these "Putting it Together" activities, you are going to take everything that you've learned so far and put it together in a realistic situation. Sometimes you'll answer questions about documents and pictures that you see, sometimes you'll write stories and descriptions--sometimes you'll do both! These activities will really help you see how Spanish is used in the real world. Good luck!Performance ChallengeWrite yourself an excuse note for school. In the note, talk about the last time you were sick. What were you sick with? What did you do to help yourself get better. Were there things you couldnt do? Write In Spanish! Katiana wanted to figure out what type of liquid worked best for growing beans. She watered one with coca-cola, one with lemonade, and one with just water. After one week, she measured how high they had grown. Independent Variable (What I, the scientist test or change) * what were some negative affects the inca (1438 - 1533) and abbasid (750 - 1200) empires had on the world? In 1995, after a tribunal had investigated violations of the Treaty of Waitangi, the government of New Zealand did all of the following except __________.A.make Maori a second official languageB.return Maori landC.issue payment to the Maori peopleD.issue a formal apology to the Maori people What are three of the hustles Malcolm had in Harlem? Which equation represents a line that passes through -2,4 and has a slope of 2/5 need help Now