Answer:
If your money is earning a 5% interest rate annually, then it will take 14.4 years to completely double itself.
Step-by-step explanation:
An easy rule of thumb to remember is to take 72 and divide it by the intrest rate as if it was a whole number. For instance, if you were looking at an 8% interest rate, then it would take 9 years to double.
72/5 = 14.4
Hope this helps!