Each tricycle has 3 wheels and one seat, so the ratio of seats to wheels is 1:3
For 5/8 it is .... 9/16
for 1/2 it is..... 2/3
The equation for line E is x = 8.
This is because the line intersects the x-axis at the point (8,0)
The answer to this question is:
x = 1 + or - the square root of 47
