Answer:
Pretty sure it's $6.45
Step-by-step explanation:
So you need to find how much it costs to fix 1 pane.
For that you divide 17.20/8= 2.15
so to fix 1 pane it costs $2.15
Now you need to find the cost to fix 3 panes. Multiply 2.15x3= 6.45
So to fix another 3 panes he needs to pay $6.45
Hope this helps:)
