Simon invested $1550 at 6.5% interest. he earned $302.25 interest at the end of t years. what is the value of t? a. 1 b. 3 c. 6 d. 9

second question
lily invested $750 in a savings account and earned $225 in interest at the end of 5 years.

what was the interest rate?

a.
5%

b.
5.5%

c.
6%

d.
6.5%