Ella purchased a game that was on sale for 12% off. the sales tax in her county is 6%. let y represent the original price of the game. write an expression that can be used to determine the final cost of the game. a. y − 0.12y b. 0.06(0.88y) c. 1.06(0.88y) d. y − 0.88y + 0.06y