To make banana berry smoothie, Just Juice mixes water and juice in a ratio of 5 to 3 How much water and juice should just juice mix to make 104 quarts of banana berry smoothies?

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.