If difference in costs is $7000 and difference in machine hours of is $18000, then slope coefficient would be

If difference in costs is $7000 and difference in machine hours of is

1.	If difference in costs is $7000 and difference in machine hours of is $18000, then slope coefficient would be
A.	0.571
B.	0.39
C.	0.2571
D.	0.39
Answer» C. 0.2571