Ed has 36 red jelly beans 48 blue jelly beans and 72 yellow jelly beans he wants to divide them equally among his friends at the lunch table what is the greatest number ed can use to divide the jelly beans evenly?

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.