After 5 years of earning interest at an annual rate of 4% an investment has earned 1,200 in interest

The graph of a line gets what as the value of the slope gets bigger

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Asap! i'm not good math and i'm lost.