Answer:
So, I cannot answer the whole question, but I can give you my thought process. SO, since you need to feed 40 people with a quarter of each meal - you would need 10 pounds of each dish. Therefore the information about the "least amount" of each dish is met. As mentioned, x = pounds of pasta salad, while y = pounds of fruit salad. this means x would equal 10 and y would equal 10. In order to find out what it would cost is:
2.50 x 10 = 25 ($25)
3.75 x 10 = 37.5 ($37.50)
the function could possibly be f=10+10?
The maximum amount of food you should buy would be 20 pounds of food, considering you need to have enough for each guest.
You should buy 10 pounds or $25 worth of pasta salad, and 10 pounds, or $37.50 worth of fruit salad.