Answer: $97.75
Explanation:
Ali's dad paid for 7 players, so the cost for just the entrance fee was $10.50 x 7 = $73.50. He paid a total of $76.75, so the scorecard fee must have been $76.75 - $73.50 = $3.25.
If he pays for 9 players, the cost of the entrance fee will be $10.50 x 9 = $94.50. Adding the scorecard fee of $3.25, the total cost will be $94.50 + $3.25 = $97.75.
Therefore, he will need to pay $97.75 if he ends up paying for 9 players. The answer is option D.