Answer:
Step-by-step explanation:
Let's solve for C.
Step 1: Flip the equation.
Step 2: Add to both sides.
Step 3: Divide both sides by .
Answer:
Answer: D
So we want to find out how big all the sides are to find out if its less than 400
do in calc
2(13x5)+2(8x5)+2(13x8)=418
418>400
and its d because its talking about the surface area since we are trying to cover the surface in wrapping paper
47+18x
Hope this helped :)