Tamara invested 15000 in an account that pays 4% annual simple interest. tamara will not make any additional desposits or withdrawls. how much interest will tamara earn on her investment at the end of 3 years?

You multiply 15,000 by 0.04 that gives you 600 per year. You need to multiply 600 by 3 to get the answer =1,800.

Divide 40%5 and your answer is 8

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.