Which algebraic expression represents "twice the sum of y and 9" a. 2+9y b.2(9y) c.2(y+9) d. 2+(y+9)

"Twice" means to double or times by 2 and "the sum" means the addition of two numbers.

So, C. 2(y + 9) is the answer.

Ithink you answer is c

N- 3 is the answer