Write a world problem that could describe the following equation y=50(2)^x

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?