-a²+7b⁴-2c³

if a= -4
b= -2
c= -3

id

step-by-step explanation:

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i know the way

and

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b. is true. hope this . happy

so the rectangle is 80cm (area)

now to find the area of a triangle.

base times height.

4 times 8.

your answer is 96cm.

hope this .