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!
221/17 = 13 bucks per hr
for 12 hrs...
13 * 12 = $ 156 <==
I’m not sure what 1. is sorry, but I think I know what 2 and 3 are.
2.) 120/1 x 3/4 because 3/4 is just the fraction form of 75%. Also 120/1 is just 120 as a fraction
3.) 1,200 x 0.03 because 0.03 is just the decimal form of 3%