Respuesta :

Answer:

C

Step-by-step explanation:

4y-9+4y simplified by combining like terms is 8y-9

Answer:

C. 4y - 9 + 4y

Step-by-step explanation:

C. 4y - 9 + 4y

Collect like terms:

4y + 4y - 9

Combine like terms:

8y - 9