Question 1041464
The profit function, F{x), is equal to,
{{{F(x)=x*p(x)-C(x)}}}
{{{F(x)=13x-0.01x^2-0.1x-17}}}
{{{F(x)=-0.01x^2+12.9x-17}}}
You can either use the derivative or put it in vertex form to get the maximum.