Answer:
6
Step-by-step explanation:
So the greatest common factor 18 and 48 is 6.
Answer:
3/7 * -8/9= -24/63= -8/21
Answer:
C
Step-by-step explanation:
the sum of the exterior angles of a polygon = 360°
the exterior angle to 93° = 180° - 93° = 87°
summing the exterior angles and equating to 360
x + 52 + 87 + x + 3 + 78 = 360 , that is
2x + 220 = 360 ( subtract 220 from both sides )
2x = 140 ( divide both sides by 2 )
x = 70

It should be x=11 instead of x=-11, so
he is not correct because he made a sign error.