The cost C$($x$)$

of producing x

units of a given machine is:

C$($x$)=29000170$x$+0\mathrm{.}7$x$^2$

$($a$)$ What is the average cost of producing $60$ machines?

Answer: Answer for part $1$

$($b$)$ What is the marginal cost of when $60$ machines are produced?

Answer: Answer for part $2$

$($c$)$ What is the cost of producing one more machine after the first $60$ machines were made?

Answer: