If the demand curve for a particularly commodity is p=-0.09×+51 and the titakcist function C(×)=1.32×+11.7×+101.4, where is the level of production. Find (a) The revenue R(×) and profit II(×). (b) All...

If the demand curve for a particularly commodity is p=-0.09×+51 and the titakcist function C(×)=1.32×+11.7×+101.4, where is the level of production. Find (a) The revenue  R(×) and profit II(×).

(b) All values of × for which production of the commodity is profitable.