Final answer:
The APR for this loan is 2.78%.
Step-by-step explanation:
To find the APR for this loan, we need to take into account both the interest rate and the fees. The formula for calculating APR is:
APR = (Annual Interest + Fees) / Loan Amount * 100
Let's plug in the values:
Loan Amount = $18,000
Annual Interest = 2.5%
Fees = $500
APR = (0.025 + 500/18000) * 100 = 2.78%
Therefore, the APR for this loan is 2.78%.