Solution:" demand function, "P=60-0.5 QRevenue fun ction, R(Q)=P,Q{:[=(60-0.5 Q)Q],[=60 Q-0.5Q^(2)],[" fixed cost "=10],[" variable cost "=Q+3],[:." cost function "=(1QQ)=" fined cost "+Q". variable cost "],[=10+Q(Q+3)],[=10+Q^(2)+3Q.]:}Hence Revenue functio, R(Q)=60 varphi-0.5varphi^(2)cost function, C(Q)=10+Q^(2)+3Q" P ... See the full answer