Suppose $C(x)=x^2-6x17$ represents the costs, in hendheds of dollori, to produce $x$ thousand pens.

$($a$)$ Use the function above to complete the following seriences foe sure to match the usits and round to the nearest cent as neededf.

The total cost is $5$ to produce a thousand pens. To produce $5510$ pens the total cont will be: $$

$($b$)$ How mary pers should be produced to minimine the cost? What is the minimum cost?

To minimine cost the production level should be $$ pens in this cole, the minimum tert with be $$ dollars.