Answer:
Step-by-step explanation:
Total investment of Kevin is $4000.
The annual interest rate is 6.8%.
At the end of each year, [tex]\frac{4000\times6.8}{100} = 40\times6.8 = 4\times68 = 272[/tex] will be added with the amount.
Thus, at the end of x year $272x will be added.
The amount of money at the end of x year will be $(4000 + 272x).