Answer:
9×9=72
8×8=64
8×7=56
5×4=20
Answer
9x9=81
8x8=64
8x7=56
5x4=20
Step-by-step explanation:
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Assuming and . Find ( g o f)( -7) by substituting f into g. Then -7 into the new expression.
( g o f)( -7) =