Rudy Wants to Invest $\$ 1000$ In Savings Certificates That Bear an Interest Rate Of

Multiple Choice

Rudy wants to invest $\$ 1000$ in savings certificates that bear an interest rate of $7.5 \%$ compounded semiannually. How long will it take for the amount to be $\$ 1500 ?$

A) $2.54$ yrs
B) $3.08$ yrs
C) $5.51$ yrs
D) $9.25$ yrs
E) $10.36$ yrs