Asports 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?
a. x represents the number of level 2 tickets; y represents the number of level 1 tickets
b. x represents the cost of level 1 tickets; y represents the cost of level 2 tickets
c. x represents the cost of level 2 tickets; y represents the cost of level 1 tickets
d. x represents the number of level 1 tickets; y represents the number of level 2 tickets