Meredith invested $5,500 into an account that earned 5% interest per year. when she cashed out the investment to use it as a down payment for a new car, it was worth a total of $7,739.05.

which equation describes meredith's investment based on t, the number of years she kept the account open?

a: t=7,739.05 (5,500)^0.05
b: 7,739.05=5,500(1.05)^t
c: t=7,739.05 (5,500)^1.05
d: 7,739.05= 5,500(0.05)^t