The answer is d.......
Answer: D 142 square inches
Explanation:
to find the surface area of a rectangular prism you must use the formula :
A=2(wl+hl+hw)
in this case it would be 2(5*3+7*3+7*5)
5*3=15 7*3=21 7*5=35
15+21+35=71
71*2=142
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