jamie and stella are saving money to sign up for a school trip to washington, d. c. in order to sign up for the trip, they must pay $600 upfront. jamie earns his money by washing cars for $25 each. stella earns her money by making pecan pies for $15 each. jamie earns more money than stella does because stella only has enough supplies to make 40 pies. x represent the number of cars jamie washes. let y represent the number of pies stella makes.

part 1: write a constraint (an inequality) to represent how much money jamie needs for his trip.

part 2: write a constraint (an inequality) to represent how much money stella needs for her trip.

part 3: write a constraint (an inequality) to represent the relationship between jamie's earnings and stella's earnings.

part 4: can stella afford to sign up for the trip with the money she earns? explain your answer and show any work that might support your answer.