Final answer:
Each player must sell approximately 108 candles.
Step-by-step explanation:
To find out how many candles each player must sell, we need to calculate the remaining cost after the car wash and equipment expenses.
The total cost of registration and equipment is $572 + $1240 = $1812.
The amount raised from the car wash and equipment sales is $786. So, the remaining cost is $1812 - $786 = $1026.
Since each candle is sold for $9.50, the number of candles each player must sell can be found by dividing the remaining cost by the price of each candle:
$1026 ÷ $9.50 ≈ 108.
Therefore, each player must sell approximately 108 candles.