Armando put $78 into a cd that pays 4.9% interest. according to the rule of
72, approximately how long will it take for his money to double?
o
o
a. 159.2 years
b. 15.9 years
o
c. 14.7 years
o
d. 146.9 years
submit

It will take 14.7 years for Armando's money to double.

Option C

Explanation:

The rule of 72 is generally used to estimate the number of years required to double the invested money at a given annual rate of return. And alternatively to find the number of years required to double the money at a given interest rate, we have to just divide the interest rate into 72.

Here, the interest rate is 4.9%. Therefore, it would be as follows

Rule 72 can be used to identify the following:

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

35-60 students are taking math.