Can somebody plz help me with 14,15,16,17,18,19 plzzz

Which compound inequality could be represented by the graph?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

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?