Sarah drove for 39 miles with an average speed of 40 miles per hour. what amount of time was she driving for?

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?

Multiplying fractions by whole number 5 x 1/3=?