Xavier owns a food truck that sells tacos and burritos. He only has enough supplies to make 130 tacos or burritos. He sells each taco for $5 and each burrito for $8. Xavier must sell no less than $780 worth of tacos and burritos each day. Also, he can sell no more than 40 tacos and at most 100 burritos. If xx represents the number of tacos sold and yy represents the number of burritos sold, write and solve a system of inequalities graphically and determine one possible solution