Developing an Equation from Average Costs Paradise Pub is a high-end dog hotel located in New York. Assume that in March, when dog-days occupancy was at an annual low of 500 days, the average cost per dog-day was $26. In July, when dog-days were at a capacity level of 4,500, the average cost per dog-day was $10.

1. Determine the average cost per dog-day at an annual volume of 28,000 dog-days.