Izzy gets a loan of $2,800 with an APR of 3.5%. She will repay the loan in monthly payments for 9 months. To find the total amount of interest she will pay, Izzy uses an online calculator. What are the correct numbers she should enter?

First, change percent into decimal value

Percent means per hundred

APR = 3.5%

APR = 3.5/100

APR = 0.035

The APR is 0.035 of the total loan

Second, we need to find interest rate for 9 months

interest rate = 9/12 * 0.035

interest rate = 3/4 * 0.035

interest rate = 0.75 * 0.035

Third, determine what to put into calculator

She can put it like this

interest = interest rate * total loan

interest = 0.75 * 0.035 * 2,800

Or she can put it like this

interest = 0.02625 * 2,800