Mr W. is having a yard sale, where he is selling iPad chargers and wireless keyboards. At the end of the day, he knows he sold a maximum of 14 items, and he earned a total of $342. If he charged $18 for each iPad charger (x) and $38 for each keyboard (y), write a system of inequalities that models this situation.

(b) graph that system of inequalities
(c) is it possible he sold 11 iPad charges and 3 wireless keyboards? explain based on your graph