15. In 1999 1500 people in Centerville were cell phone users. Suppose the number of users is increasing by 75% each year and the number of cell phone users from 1999-2003 is modeled by
y = 1500(1+.75)' with t representing time, in years since 1999, and y representing the total number
of cell phones in Centerville. Complete the following table.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π