## A manufacturer...

A manufacturer of toaster ovens has a total production costs of $2400 when 50 ovens are produced.Also, at that production level the marginal cost is$25per oven.Calculate the rate at which average cost per oven is changing at a production level of 50ovens.

I have some idea as to we have to find bar c(x)=c'(x)/x

Any suggestions?Am i thinking correct?