Solve the linear problem

Solve the problem. A company makes two kinds of engineering pencils, Type I and Type II (deluxe). Type I needs 2 min of sanding and 6 min of polishing. Type II needs 5 min of sanding and 3 min of polishing. The sander can run no more than 66 hours per week and the polisher can run no more than 73 hours a week. A $3 profit is made on Type I and $5 profit on Type II. How many of each type should be made to maximize profits