Item 12 possible points: 5 given the equation y=25(1.025)x y = 25 ( 1.025 ) x , at what percentage rate is the exponential function decreasing or increasing? decreasing by 2.5% increasing by 2.5% increasing by 25% increasing by 10.25%

Which account has the highest effective annual interest rate? not necessary but show how you got your answer.a. account 1: interest is compounded quarterly at an annual rate of 4.20%.b. account 2: interest is compounded monthly at an annual rate of 4.15%.c. account 3: interest is compounded semiannually at an annual rate of 4.10%d. account 4: interest is compounded annually at a rate of 4.25%.