Ineed before 6: 30am tomorrow morning i have to show my work and tell if the problem is a function, linear function, or non linear

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).