Question

Please can someone help me

Answer 1

Explanation:

total profit=income -cost

or

P(x)=R(x)-C(x)=-0.5x²+800x-100-(300 x+250)

or P(x)=-0.5x²+800x-100-300x-250

or P(x)=-0.5 x²+500 x-350

so (2)