A shipping company is trying to minimize the cost of driving a truck between Chicago and New Orleans. They know the following things: {{CMD_1}} {{CMD_2}} The trip is 750 miles. {{CMD_3}} Running at 50 mph, the truck gets 4 miles per gallon. {{CMD_4}} For each 1 mph increase in speed above 50 mph the truck loses 1/10 of a mile per gallon in fuel efficiency, and for each 1 mph decrease in speed below 50 mph the truck gains 1/10 of a mile per gallon in fuel efficiency. {{CMD_5}} The team of drivers earns 27 dollars per hour. {{CMD_6}} There is an additional cost of 15 dollars per hour to operate the truck. {{CMD_7}} Diesel fuel for the truck costs {{CMD_8}}3.90 per gallon. {{CMD_9}} The truck will be driven at a constant speed for the entirety of the trip. {{CMD_10}}