HELP ME PLEASE I NEED HELP

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0