5. Tanya thought of a number. She tripled the number and subtracted 25 from the result. She then multiplied the difference by the original number. Which function represents Tanya's number? a. Ax) = (x' - 25)x c. Ax) = (x - 25)3x b. A(x) = (3x - 25)x d. Ax) = (25 - 3x)x