A manufacturer of skis produces two types: downhill and cross-country. The times required for manufacturing and finishing each ski are given in the table. The maximum total weekly hours available for manufacturing and finishing the skis are 22 hours and 17 hours, respectively. The profits per ski are $70 for downhill and $60 for cross-country. Determine how many of each kind of ski should be produced to achieve a maximum profit.
To achieve maximum profit, the manufacturer should produce _____ downhill skis and ______ cross country skis