The answer is a) 12m^3 + 10n^2
What form of math is this?
(c+3)-2c-(1-3c)=2
c+3-2c-1+3c=2
2c+2=2
2c=0
c=0
The perimeter of a shape is the sum of its side lengths
The expressions for the perimeter of the frame are 4(l + 2) and 4l + 8
<h3>How to determine the perimeter of the shape</h3>
The side length of the frame is given as l
So, the perimeter of the frame is
:
When 2 inches are added to each length, the perimeter of the frame becomes

Expand

Hence, the expressions for the perimeter of the frame are 4(l + 2) and 4l + 8
Read more about perimeter at:
brainly.com/question/24571594