Final answer:
Dillon paid a total of $106.50 for 5 dozen chocolate chip cookies. The price per dozen is found by dividing the total cost by the number of dozens, which is $21.30.
Step-by-step explanation:
To calculate the price per dozen of chocolate chip cookies, we first need to know the total cost and the total quantity Dillon bought. The student mentioned that Dillon pays $106.50 for 5 dozen chocolate chip cookies. To find the price per dozen, we divide the total cost by the number of dozens purchased.
The calculation would be: $106.50 รท 5 dozen = $21.30
Therefore, the price per dozen of chocolate chip cookies is $21.30.