Final answer:
To calculate the future cost of a $200,000 house after 4 years with an average price appreciation of 7% compounded annually, the formula for compound interest can be used. The future cost of the house would be $229,866.83.
Step-by-step explanation:
To calculate the future cost of a $200,000 house after 4 years with an average price appreciation of 7% compounded annually, you can use the formula for compound interest: A = P(1 + r/n)^(nt). In this case, P is the initial price of the house ($200,000), r is the interest rate (7% or 0.07), n is the number of times the interest is compounded per year (1 since annually), and t is the number of years (4).
Using the formula, the future cost of the house would be: A = $200,000(1 + 0.07/1)^(1*4) = $229,866.83.
Therefore, the correct answer is a) $229,866.83.