Answer:
B. 10 ft by 12 ft
Step-by-step explanation:
The perimeter is the length of all the sides added. Because it's a rectangle there are two pair of parallel lines. 10+10=20
12+12=24
24+20=44
8x + 60
4(x + 5) + 2(x - 10) + 2(x + 30)
= 4x + 20 + 2x - 20 + 2x + 60 (combine like terms)
= 8x + 60
the answer is C
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