An average can be calculated by the quotient of the sum of all terms and the number of terms. In this instance, there are 4 pairs of shoes with three given values. Let's say x is the price of the fourth pair of shoes.

Clear the fraction by multiplying both sides of the equation by 4.
Answer:
It's C
Step-by-step explanation:
Answer:
The answer is 18
Step-by-step explanation:
I'm not sure what the problem is, but if it is
÷
than the snwer would be 18
Answer:10.25
Step-by-step explanation: