Answer:
C) 
Step-by-step explanation:
The formula for area is
A=pi * radius ^2
If the diameter is 40, the radius is 20
Therefore

Answer:
10
Step-by-step explanation:I had this
Answer:
10.4
Step-by-step explanation:
√(5--5)²+(0-3)²
√100+9
√109=10.4
Answer:
Simple!
All you have to do is divide 3.5 by 124.25
124.25 / 3.5 = 35.5
Your answer is C.
Hope this helps!