### Home > CCAA8 > Chapter 7 Unit 3 > Lesson CC3: 7.1.2 > Problem 7-21

7-21.

Evaluate each expression below for *a *when

Multiply

by , then divide by .

Use the same method as part (a).

Dividing by

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7-21.

Evaluate each expression below for *a *when

Multiply

by , then divide by .

Use the same method as part (a).

Dividing by

undefined.