Answer:
3
Step-by-step explanation:
6n+5, because you just subtract 9n with 3n
1 mile * 5280 ft * 12 in = 63360 in
There are 63360 inches in one mile
The worth of Sarah's investment when she is 68 is $14,728.51.
<h3>What is the worth of the investment?</h3>
The formula that can be used to determine the worth of the investment is:
FV = P (1 + r)^n
FV = Future value
P = Present value
R = interest rate
N = number of years = 68 - 18 = 50
$500 x (1.07)^50 = $14,728.51
To learn more about future value, please check: brainly.com/question/18760477
