when the two books were published
8.5 feet(12 inches per foot)= 102 inches total
There are 102 inches in 8.5 feet
Y intercept is (0,-12), the x-intercept is (4,0)
Let the number of rows be = r
Let the number of seats per row be = s
we know that the number of seats is 126.
So,
..... (1)
As given, there are five more seats per row than the number of rows, so we can say that:

Putting this in equation (1)





r=-14 and r=9 (neglecting the negative value) we get r=9
And s=r+5
so, s =9+5=14
Hence, there are 5 rows and 14 seats per row.