Simplify the expression. write the answer using scientific notation. (8*10^7)(2*10^6)

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

What is the value of f(x) = 2.2 for f(-2)?