Answer:
For 2 more panes of glass it will cost $5.70.
Explanation:
To find the price of each pane of glass you take the total price/ total panes of glass.
25.65/ 9 = $2.85.
If he wanted one more pane of glass it would be $2.85 but since you asked for two you multiply by 2 and get $5.70. Hope this helps!