Use the compound interest formula, A(t) = P(1 +5)". An account is opened with an intialy deposit of $6,500 and earns 4.6% interest compounded semi-annually. Round all answers to the nearest dollar. a. What will the account be worth in 15 years? $ b. What if the interest were compounding monthly? $ c. What if the interest were compounded daily (assume 365 days in a year)? $