It costs a company $$21\mathrm{.}00$ to produce $150$ glass bottles.

$($a$)$ What is the average cost of production of a glass bottle?

$

$($b$)$ Assuming

C$($q$)$

represents total cost of producing q bottles, write an expression for average cost.

A$($q$)=$ C$($q$)+$ q

dollars per bottle gives the average cost to produce one bottle when q bottles are produced.

A$($q$)=$ C$($q$)$ q

dollars per bottle gives the average cost to produce one bottle when q bottles are produced.$$

A$($q$)=$

$2$qC$($q$)$

dollars per bottle gives the average cost to produce one bottle when q bottles are produced.

A$($q$)=$ C$($q$)2$

dollars per bottle gives the average cost to produce one bottle when q bottles are produced.

A$($q$)=$

C$($q$)$q

dollars per bottle gives the average cost to produce one bottle when q bottles are produced.