Please provide as much detail as possible, thank you!

[3, K] 6 Marcia invested some money!!! She came up with the following formula to determine the future value of her investment: A = 25000 (1.0125) 48. a) What was the principal or present value of her investment? b) What was the annual interest rate if interest is compounded semi-annually? c) How many years did she plan on investing if interest is compounded semi-annually