Answer:
C
Step-by-step explanation:
Calculate the slope m using the slope formula
m =
with (x₁, y₁ ) = (4, 9) and (x₂, y₂ ) = (12, 20)
m = = → C
lets say
Red bricks = 5x
<span>Gray bricks = 2x </span>
<span>5x + 2x = 175 </span>
<span>7x = 175 </span>
<span>x = 175/7 </span>
<span>x = 25 </span>
<span>Red bricks =(5x) = 5 * 25 = 125 </span>
<span>Gray bricks =(2x) = 2* 25 = 50 </span>
70: 1,2,5,7,10,14,35,<span>70
20: 1,2,4,5,10,20</span>
The rule to figuring out the area of a circle is A=r^2*pi.
So since the radius is half of the diameter you will ne to cut 25 in half. Which equals 12.5. OK so now we need to multiply 12.5 by 12.5 which equals 156.25.
So i believe that the Answer is C. 156.25pi m^2