Answer:
4 1/4
4 2/8
Step-by-step explanation:
1 7/8 + 2 3/8 = 4 1/4
4 1/4 = 4 2/8
Given
the answer is 9 feet
cuz 12-3=9
12x-6
perimeter= 2l+2w
=2(x+4)+2(5x-7)
=2x+8+10x-14
=12x-6