A bank is offering 2.5% simple interest on a savings account. If you deposit $5000, how much interest will you earn in 4 years? 50,000

$12,500

$125

$500

$125 interest

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.