Solve
-Find Out How Long It Takes A $\$ 3000$ Investment to Double If It Is Invested At

Multiple Choice

Solve.
-Find out how long it takes a $\$ 3000$ investment to double if it is invested at $8 \%$ compounded quarterly. Round to the nearest tenth of a year. Use the formula $A = P \left( 1 + \frac { r } { n } \right) ^ { n t }$ .

A) $9.2$ years
B) $8.6$ years
C) 9 years
D) $8.8$ years