Final answer:
The total cost for the Sky High Ski Club dues, skis, boots, and poles is $707.15.
Step-by-step explanation:
The total cost for the Sky High Ski Club dues, skis, boots, and poles can be calculated by adding up all the costs. The cost for the dues is $450. The cost for the skis, boots, and poles is $159.90 + $78.25 + $19 = $257.15.
To find the total cost, we add the cost of the dues and the cost of the equipment: $450 + $257.15 = $707.15.
Therefore, the total cost is $707.15.