Answer:
$0.81
Explanation:
To find the price of each spool, you can divide the total cost by the number of spools. In this case, the total cost is $4.05, and you're buying 5 spools.
Price per spool = Total cost / Number of spools
Price per spool = $4.05 / 5
Price per spool = $0.81
So, the price of each spool of yellow thread is $0.81.