100 POINTS! PLEASE HELP!!! You have $75 dollars to spend on side dishes for a party. Pasta salad costs $2.50 a pound and fruit salad costs $3.75 a pound. you must buy at least 5 pounds of pasta salad and 3 pounds of fruit salad. There are 40 people to feed and there needs to be at least a quarter of a pound of each side dish for every guest. You want to be able to buy the most amount of food for the party.

let x = pounds of pasta salad and y = pounds of fruit salad.
The objective function is f=x+y.
The vertices of the feasible region are (5,5) (5,16.6) (25.5,3) and (7,3)

what is the maximum amount of food you should buy?
how much pasta should you buy?
how much fruit salad should you buy?