Delta diamonds had 5 diamonds available for sale this year: 1 purchased june 1 for $500; 2 purchased july 9 for $550 each; and 2 purchased september 23 for $600 each. on december 24, it sold 1 of the diamonds. using lifo periodic, its cost of goods sold is?

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?