Worth 13 points need asap which statement is true if lt = 7?

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?

There are 85 apples on the big tree, john picked out 15%. how many did john pick out?

This question is hard for me to answer can you me. the question is find the value of x.