The Function Gives the Annual Interest Rate R

Multiple Choice

The function gives the annual interest rate r , as a percent, a bank will pay on its money market accounts, where t is the term (the time the money is invested) in months. What is the minimum number of complete months during which a person must invest to receive an interest rate of at least 2.3%?

A) 17 months
B) 10 months
C) 19 months
D) 16 months
E) 8 months