Hello!
To find the area of a circle you use the equation

r is the radius which is half the diameter

Square 18.5

Put this into the calculator and you get the answer of about 1075.21
The answer is about 1075.21
Hope this helps!
$1,240-$150-$244-$300-$50=$496 left
496/1240=x/100
x=49600/1240=40%
All you have to do is use proportions.
=)=)=)
I think the answer is 10 ft. Hope this helps!
Speed=distance/time
8=distance/15
120km= distance