If you want the area of the entire trapeziod.
The formula for area of a trapeziod is:
1/2h(b₁+b₂)
So the equation applied to the trapeziod is:
2.5(20+12)
20+12 is 32. 32 multiplied by 2.5 is 80.
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5 x 7 because if 5 is the width is 25 then 18 minus that is 7 and 7x5 = 35
I believe it's b.
Hope this helped!
