Your answer is a equation!
Answer:
1/10 5 2
20 1 1/20
1/2 1/5 10
Step-by-step explanation:
If you have covered function tranformations
is an exponential function, likely something like

but shifted upwards by 3 units and with a coefficient multiplying "x" something like "2"
so... try graphing in your calculator
The rule of 72 says to divide 72 over the interest rate without the percent sign attached to it. This means we divide 72 over 9.6 to get 72/9.6 = 7.5
So the money doubles every 7.5 years. When another 7.5 years rolls around, a total of 2*7.5 = 15 years has gone by. At this point the money is roughly 4 times that of the original amount deposited.
<h3>Answer: choice B</h3>