Concrete wall

A 10 1/2 by 16 concrete wall is to be built using concrete blocks. Find the area of the wall.

Correct answer:

A =  168

Step-by-step explanation:

a=1021=10+21=210 2+1=220+1=221=10.5 b=16  A=a b=221 16=221 16=2336=168

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