Answer:
Number of Significant Figures: 4
The Significant Figures are 1 0 7 6
You need to shift the decimal 3 spaces to the left, which would get you 0.0034.
Answer:

Step-by-step explanation:
According to the scenario, the following information is given:



Therefore for the given equation, the answer is 
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