If Katarina continues to make only the minimum payments, she will have to make payments for 38 months and will spend $667. Once she has paid off the laptop, how much interest will Katarina have paid?

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.