Plz help me on these three I need to see what is the slope.

Question 5 spring semester final exam math evaluate

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

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?