What is the rate in which the second quantity is one unit

Michelle had a birthday party. she bought a bag of candy with 96 starbursts, 72 hershey's, and 68 reese's. she wants to use all the candy she bought to make goody bags with the same amount of starbursts, hershey's and reese's in each bag. what is the largest number of bags she can make?

How do i do this activity, is appreciated

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost