I'm pretty sure that it's cubic feet not really sure tho sorry
A because your not dividing it by 5 your subtracting 5 from k divided by 2
If x is the number of chairs in a row
4x + 5 = 2x + 17
2x = 12
x=6
There are 6 chairs in each row. Now you have to find the total
4x+5 = 4(6)+5 = 29
And now double check
2(x) + 17 = 2(6)+17 = 29
Liam has 29 Chairs
11.6666667 yards I believe.