Answer:
10
Step-by-step explanation:
40=2 x 2 x 2 x 5
50=2 x 5 x 5
therefore, GFC = 2x5
GFC= 10
NICKI IS THE QUEEN OF RAPPP
It could b a or c depend on what grade you are in
Step-by-step explanation:



The circumference of the circle is 56.52 km which is letter choice B.