Rule of 72 says to divide 72 by the rate of return and that will be the number of years an investment will double
so 72 / 9.6 = 7.5 years to double
7.5 * 2 = 15 years
18-3 = 15
the answer is: <span>Yes, the $15,000 will double each 7.5 years. In 15 years, it will double twice.</span>
Answer:
2
Step-by-step explanation:
Mrs. Walters : 360/25 = 14.4 miles per gallon
Mr. Walter : 480/32 = 15 miles per gallon
Mr. Walter is getting better mileage per gallon
