Your answer will turn out to be −4x^2+3x.
The formula for surface area is SA = 2 (wl + hl + hw). Plugging in the numbers that we know, we get SA = 2 (100 + 10h +10h). We know that the crust accounts for half of the surface area.
The surface area was not provided so this is the closest I can go without the provided surface area. I hope this helps you :)
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C.
His college savings account has a balance of $13,700.</span>
The answer is 27 because 8-2=6 and 9-6=3 then 8*2=24 and 24+3=27
