A small truck can carry no more than 1600 pounds (lb) of cargo nor more than 150 cubic (ft3 ) of cargo. A printer weighs 20 lb and occupies 3 ft3 of space. A microwave oven weighs 30 lb and occupies 2 ft3 of space. 

(a) Using x to represent the number of microwave ovens and y to represent the number of printers, write a system of linear inequalities that describes the number of ovens and printers that can be hauled by the truck. 

(b) Graph the system and label the corner points.