ANSWER:
C. P(x) = -2x²+34x+98
STEP-BY-STEP EXPLANATION:
We have the following functions associated with the company:
[tex]\begin{gathered} C\left(x\right)=21x-98 \\ \\ R\left(x\right)=55x-2x^2 \end{gathered}[/tex]
We must calculate the profit function, which is equal to the revenue function minus the cost function, therefore, we would have the following:
[tex]\begin{gathered} P(x)=R(x)-C(x) \\ \\ P(x)=55x-2x^2-(21x-98) \\ \\ P(x)=55x-2x^2-21x+98 \\ \\ P(x)=2x^2+55x-21x+98 \\ \\ P(x)=-2x^2+34x+98 \end{gathered}[/tex]
Therefore, the correct answer is C. P(x) = -2x²+34x+98