20:12
i think. 20 being the number of total students to 12 which is the number of boys
Answer:
c
Step-by-step explanation:
First Rectangle:
Second Rectangle:
O= 90 because it is a right angle, 360 degrees (which is the whole circle) minus (50+90), equals 220.
3x2-3x+9
(h-k)(3)
(X2+1-(x-2))(3)
(x2+1-x+2)(3)
3x2+3-3x+6