The formula for the area of a circle is

To break it up, its π×r×r=A
The radius is 12inches
So the equation is 3.14×12×12
3.14×12=37.68
37.68×12=452.16
452.16 rounded is 452
A=452inches
Answer:
40%
Step-by-step explanation:
To find a percent, divide the part by the total and multiply by 100.
To find the part, subtract 21 from 35 to find the people who left.
35 - 21 = 14
(14/35)*100 = p
.4 *100 = p
40 =p
The midpoint of (x1,y1) and (x2,y2) is

just average them
(4,1) and (-2,4)
the midpoint is

(1,-1.5)
6=3 : 16=6 14=6 that should be right