Answer:
C) 3(x + 3y + 5)
D) 3x + 3(3y +5)
Answer:
A coefficient is the number next to a letter. It's used to multiply a variable. If there is just a variable then the coefficient is 1. For example 6x.
Step-by-step explanation:
Sides that two side is equal so
5x+10=40
5x=30
X=6
The final answer for this question is 591.28 cubic cm