Question 1046018
One ride around the circle is 2*pi*r=30*pi feet, or 94.2 feet.
94.2*x<500.  Divide both sides by 94.2 and x< 500/94.2=5.30, so 5 rides, because 6 will be too many.
The area of the rectangle is l*w=45*30=1350 sq ft.
The area of the circle is pi*r^2 or 225 pi, since r=15.  225*pi=706.5 sq ft
The area of the grass is the area of the rectangle minus the area of the circle or 643.5 sq ft