Answer:
Walmart
Explanation:
It is given that,
Jonathan wants to buy his whole basketball team new clothes.
On Amazon there is a sell for 11 shirts for $145.23
The cost of 1 shirt on amazon:

On Walmart sell for 23 shirts for $212.19.
The cost of 1 shirt on Walmart:

Cost of 1 shirt on Amazon is $13.20 and on Walmart is $9.225. It is clear that on Walmart it is better to buy for $9.225.