(A)
If the profit on a trick ski is [tex]$40 and the profit on a slalom ski is $[/tex]50, to realize the maximum profit, 0 trick skis and 27 slalom skis should be manufactured each day.
The maximum profit is therefore \( \$1350 \).
(B)
If the profit on a slalom ski decreases to [tex]$35, the maximum profit decreases to \( \$[/tex]945 \). The optimal production schedule remains the same, with 0 trick skis and 27 slalom skis being produced.
(C)
If the profit on a slalom ski increases to [tex]$60, the maximum profit increases to \( \$[/tex]1620 \). The optimal production schedule remains the same, with 0 trick skis and 27 slalom skis being produced.