1+ the compound interest formula, A (t) = P(1 An account is opened with an intial deposit of $7,500 and earns 2.4% interest compounded semi- annually. Round all answers to the nearest dollar. a. What will the account be worth in 15 years? $ n b. What if the interest were compounding monthly? $ c. What if the interest were compounded daily (assume 365 days in a year)? $