Adding Polynomials
1. (2x + 6) + (9x + 3) =
2. (7y2 + 2y - 4) + (5yº - 6y + 9) =
3. (8a²- 11a + 7) + (-5a - 3a - 10) =
4. (-3b + 6b2 + 4b - 5) + (5b' + 7b2-7b + 13) =
5. (9x2 + 13x[+ 17) + (-11x + 5) =

Please hellppp

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?