Manufacturing—Key Fobs: The cost of producing Rally Racing key fobs can be modeled by the...

Manufacturing—Key Fobs: The cost of producing Rally Racing key fobs can be modeled by the cost function C(x) = 15,200 + 4.85x, where x represents the number of fobs produced, and C(x) represents the cost in dollars. The average, or per-unit, cost of producing x key fobs is given by the average cost function

Determine and interpret.