Final answer:
The present value of $10,000 received in three years with an after-tax rate of return of 8% is $8,570.
Step-by-step explanation:
To calculate the present value of an amount received in the future, we use the formula:
Present Value = Future Value / (1 + r)^n
Where r is the annual interest rate and n is the number of years. In this case, Jack earns an 8% after-tax rate of return. So, the present value of $10,000 received in three years would be:
Present Value = $10,000 / (1 + 0.08)^3 = $8,570
Therefore, the answer is option 4) $8,570.