Final answer:
The Stricklands need to save approximately $25,762.45 annually to achieve their retirement goal of $2,750,000 in 30 years based on a 7% investment rate, with the closest provided option being -$27,208 (option 3).
Step-by-step explanation:
To calculate the level of savings Tom and Jerri Strickland need to put away at the end of each year to meet their retirement goal, we use the future value of an annuity formula. Given an after-tax investment rate of 7% and the desired future sum of $2,750,000 over 30 years, we're looking to find the annuity payment (A). The future value of an annuity formula is FV = A * {[(1 + r)^n - 1] / r}, where FV is the future value, A is the annuity payment, r is the rate of return per period, and n is the number of periods. Substituting the values, we get 2,750,000 = A * {[(1 + 0.07)^30 - 1] / 0.07}. Solving for A gives us the annual savings needed.
Using the formula, we calculate: A = 2,750,000 / {[(1 + 0.07)^30 - 1] / 0.07}. This simplifies to A = 2,750,000 / 106.766. Thus, A = $25,762.45. This means the closest option available rounding to the nearest dollar is -$27,208.