A wireless store owner takes presale orders for a new smartphone and tablet. He gets 370 preorders for the smartphone and 210 orders for the tablet. The combined sale of the preorders is $364,410. If the price of a smartphone and a tablet together is $1413, how much does each device cost

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?