F. 30 is the correct answer, for mean you just have to add all the ages together and divide by the number of customers
Answer:
(-7, -10)

Step-by-step explanation:

Substitute x for -7.

Multiply 4 by -7.

Add 28 on both sides.

Divide -4 on both sides.

Answer:
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Step-by-step explanation:
Answer:
-6x-16
Step-by-step explanation: