Answer:
$3.10
Step-by-step explanation:
We are given that
Total number of friends=4
Supplies cost=$12.40
We have to find the how much each friend pay.
The supplies cost is equally shared among four friends.
To find the amount paid by each friend we will divided the total supplies cost by 4.
Each friend pays the supplies cost=
Each friend pays the supplies cost=$3.10
When four fiends equally shared the cost of supplies then each friend pays the supplies cost $3.10.