Need help with questions A, B, and C.

Need Help With Questions A B And C class=
Need Help With Questions A B And C class=

Answer :

Answer:

A. 44+4x

B. The error is that Ben forgot to distribute his terms by multiplying 7 by 15 so instead of 30x+7 he should have gotten 30x+105

C. (44+4x)-(12x+20) to solve for difference in perimeter

Step-by-step explanation: