Almost undoubtedly, however, it has some positive slope.
It definitely has some positive slope.
It has a very negative slope.
Thinking about poor people who suffer is easy.
A man sleeping in front of a piano.
An animal has a stick in its mouth.
Cost driver is any factor that can change in cost of activity or output
A male in a white, sleeveless t-shirt stands in the doorway of an adobe house
A young woman speaking to two men.