At a used book sale, all the books cost the same price. Henry buys 4 paperback books for $3.20. Laney buys 9 books. How much doe
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Answer:
Step-by-step explanation:
The area of the big triangle is 1/2 b h = 1/2*6*(12^2 = 6^2 + x^2)
that ends up being
the small triangle are needs to be subtracted....
that is the length of the unknown side...
1/2 B * h of that triangle get you to
just subtract the two areas