Dion saves $15 each month. how much money does deon save in 6 months?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

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?

Can someone me with this? i’m not sure what to put for my equations.