okay..there's gonna be like...7 questions..if u can answer as many as u can, it would mean the world to me..im seriously tryna get my math grade up. THESE NEED TO BE ANSWERED AS SOON AS POSSIBLE Simplify the following expressions: 1.) (3x/2)^4 2.)(2b/3)^4 3.)3^7/3^5 4.)((-1)^3/(-3)^-3) 5.)x^5/x^9 6.)m^2n^-5/m^7n^-17 7.)3k/8)^2

Question and answers are in the attached picture. you so much in advance.

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?