Please help really hard math question that is due today!

The world's population is projected to double in about ____ years. The heart is an example of which level of organization within an organism?ocellorgantissueO organ system Why did Mary not want to participate in Ta-Na-E-Ka What happens to the times difference between primary and secondary waves please help urgent easy 8th grade math What is an advertising campaign?A. A method of finding customers according to particularcharacteristicsB. A series of product-related activities designed to get the attentionof customersC. A set of games customers receive for free when they buy certainproductsD. An electronic device that enables customers to interact with an advertisement Graph the following system of equations. Click on the graph until the correct one appears.y > xy -x + 2(look at attached pictures) What is cos(3)?10-1-2 0.5 times -8 3/5[/tex] Help I need the answer quick The first four terms of a sequence are show below. 3, 9, 27, 81.. Which function models this sequence? A) 3^n, B) 3^n-1 C)3n D)9(-3)^n-1Please help Solve: - 4x +3 Which of the following expressionsare equivalent to the whole number240?O 8x38 x 30O 80 x 3O 6x40O 60 x4 Trying to convince an audience to vote for a tax increase to fund for education is a proposition of policyproposition of factproposition of truthproposition of value ASAP What is the answer to this question ? Best answer will recieve BRAINLIEST!! Read the sentence.Writers use verbal phrases containing gerunds, infinitives, and participles to add variety and interest to their writing.What type of phrase is the underlined phrase in the sentence?A.a gerund phraseB.an infinitive phaseC.a participial phaseD.a prepositional phrase What is the distance between points (8,4) and (3,4) on a coordinate plane? Please help with this problem A large negative number is added to a small positive number. Which of the following statements is correct about thesum?the sum will be negativethe sign of the sum cannot be determinedthe num could be the positive or negativethe sum will be positive This map shows the empire of Alexander III circa 332 BCE. Map of Alexander the third's empire in 332 B C E. A key shows Alexander's empire in orange and the Persian Empire in pink. The cities of Alexandria, Babylon, Athens, Sparta, and Byzantium are labeled. This map shows Alexander IIIs empire before he defeated Darius III. after he defeated Darius III. before he invaded Rome. after he invaded Rome. As you climb a mountain, the boiling point (temperature) of water:1. decreases2. remains at 100 C3. increases