1) Cathy borrows $3280 at 0.3% simple interest per month. When Cathy pays the loan back 9 years later, what is the total amount that Cathy ends up repaying?

2) Ruth borrows $440 at 0.6% simple interest per month. When Ruth pays the loan back 4 years later, how much interest does Ruth pay?

3) Fred borrows $2710 at 3.8% simple interest per month. When Fred pays the loan back 3 months later, what is the total amount that Fred ends up repaying?

4) Ralph borrows $360 at 0.7% simple interest per month. When Ralph pays the loan back 3 months later, how much interest does Ralph pay?

5) Deb borrows $3190 at 2.9% simple interest per month. When Deb pays the loan back 5 years later, what is the total amount that Deb ends up repaying?

6) Ian borrows $3580 at 31% simple interest per year. When Ian pays the loan back 7 years later, how much interest does Ian pay?

7) Zach borrows $1910 at 2.6% simple interest per month. When Zach pays the loan back 3 years later, how much interest does Zach pay?

8) Craig borrows $1000 at 9% simple interest per year. When Craig pays the loan back 11 years later, what is the total amount that Craig ends up repaying?

9) Larry borrows $1300 at 5% simple interest per month. When Larry pays the loan back 3 years later, what is the total amount that Larry ends up repaying?

10) Fred borrows $40 at 0.8% simple interest per month. When Fred pays the loan back 2 years later, how much interest does Fred pay?