A small business sells sno-cones at the southern end of the amusement park. They had to pay the amusement park $8,500 for the space to sell the sno-cones, and it costs the business $0.80 in supplies for each sno-cone they sell.
If the small business can afford to pay less than $30,000 in expenses for the summer, what is the maximum number of sno-cones they can afford to sell?