Question

26 fill in the blanks. 0.3 points. according to the rule of 72, if you have an investment earning 4% interest per year it would take choose your answer. for your investment to double.

Explanation:

Step1: Recall Rule of 72 formula

The time to double an investment is $\frac{72}{\text{interest rate (in \%)}}$

Step2: Substitute 4% into formula

$\frac{72}{4} = 18$

Answer:

18 years