5. The supply lnction for a certain commodity is given by p = 5(q) = qr2 + Sq +100 , and the demand function is given by p = D(q) = 350q2,where p is the price ofthe item, in $, and q is the quantity sold. 3. Find the coordinates of the equilibrium point. 3 points q b. Find the producers' surplus. (135.: f ( pa S(q))dq) 7 points {I