Write an equation that can be used to find the percentage of students x that are signed up to do a physics project

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?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle