Final answer:
The cost of each uniform is $20.50.
Step-by-step explanation:
To find the cost of each uniform, we can subtract the cost of the basketballs from the total amount spent. The total amount spent is $450 and we know that each basketball costs $9.50, so the total cost of the basketballs is 15 * $9.50 = $142.50. Now, we can subtract the cost of the basketballs from the total amount spent to find the cost of the uniforms. $450 - $142.50 = $307.50. Since there are 15 players on the team, the cost of each uniform is $307.50 / 15 = $20.50.