Charlotte-Mecklenburg Schools Math 1, Unit 2. End-of-Unit RETEST Student 5. Tickets to the zoo cost $15 for adults and $11 for children. The school has a budget of $1500 for the field trip. An equation representing the budget for the trip is 15x + 11y = 1500. a. With a budget of $1500, determine if 120 students and 20 adults can go to the zoo. Explain how you know. b. If there are 120 students who need tickets, what is the maximum number of adults who can go to the zoo while staying within the school budget? Show or explain your reasoning. c. Solve the equation15x + 11y = 1500 for x.​