Kyle paid $96 in interest to borrow $7200 for 4 months.
what annual interest rate did kyle pay?
a.
1.33%
b.
4%
c.
5.33%
d.
16%

So we know that 4 months is 1/3 of a year. therefore, the interest kyle would've paid in a year would be 96x3, 288. now we just need to know what the interest rate for a year was. we find the interest rate by dividing the annual interest by the total amount borrowed. 288/7200+0.04, so the answer is B, 4%.