80. Suppose that it costs $5000 to start up a business selling snow cones. Furthermore, it costs $0.50 per cone in labor, ice, syrup, and overhead. Then the cost y in dollars to make x snow
cones is given by the linear equation
y = 0.50x + 5000.
Express each of the following as an ordered pair.
(a) When 100 snow cones are made, the cost is $5050.
(b) When the cost is $6000, the number of snow cones made is 2000.