Answer:
1,547 inches or 128 feet and 11 inches
Explanation:
7 ft 7 in = 91 inches
17 boards (91 inches) = 1,547 inches
1,547 inches / 12 ≈ 128.9166667 feet = 128 feet and 11 inches
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather