Final answer:
The cost of a cookie is $1.50.
Step-by-step explanation:
To find the cost of a cookie, we need to subtract the cost of the cupcakes from the total bill and divide the remaining amount by the number of cookies:
- Cost of cupcakes for 8 children = $2.75 x 8 = $22
- Remaining bill after deducting the cost of cupcakes = $46 - $22 = $24
- Number of cookies = 2 per child x 8 children = 16
- Cost of a cookie = Remaining bill / Number of cookies = $24 / 16 = $1.50
Therefore, the cost of a cookie is $1.50.