Leslie and Colton are selling strawberry lemonade in their neighborhood for s dollars per cup.
They decided to set up stands at opposite ends of their street to sell to more people. Leslie sold 20 cups of strawberry lemonade at her stand, and she made an additional $15 in tips.
Colton sold 30 cups of strawberry lemonade at his stand, and he made an additional $25 in
tIps.