I eventually figured out the last one, so I'll only need some help with this:
The cafeteria has 144 bananas, 36 pears, and 72 apples. Each student gets the same number of pieces of fruit. What is the greatest number of students who can receive fruit?
I figured out that the GCF was 36, but what now?
Well there you got it !!
The greatest number of students to get equal number of fruits is 36
36 students will get 1 pear each, 2 apples each, and 4 bananas each