penquinslider6150 penquinslider6150 02-06-2023 Business contestada 5. A firm has the following total-cost and demand functions: \[ \begin{array}{c} C(Q)=\frac{1}{3} Q^{3}-7 Q^{2}+50 Q-1000 \\ P=100-4.5 Q \end{array} \] (a) Write out the total-revenue function \( R \)