I need help, find the area

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45.7

Explanation:

5 x 7 x 1/2 = 17.5

18 x 7 x 1/2 = 63

63 - 17.3 = 45.7

I hope this helped!

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- Zack Slocum

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(23*2)-12=x     x=34

step-by-step explanation:

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0