A sports team came to town. The stadium filled all 10,000 seats at two-level pricing. Level 1 tickets are $50 each, and level 2 tickets are $150 each. The stadium made $75,000 in ticket sales. The system of equations that models this scenario is: x + y = 10,000 50x + 150y = 75,000 What do the x and y represent in the system? (1 point) x represents the number of level 2 tickets; y represents the number of level 1 tickets x represents the cost of level 1 tickets; y represents the cost of level 2 tickets x represents the cost of level 2 tickets; y represents cost of level 1 tickets x represents the number of level 1 tickets; y represents the number of level 2 tickets