Answer:
Perpendicular
Step-by-step explanation:
Lines that intersect at right angles (i.e 90 degrees) are by definition Perpendicular
perpendicular lines
1.75
because you divided the money you earned by how much time you worked
1.3%
I think ( b) is non proportional linear
Divide total pain by number of books.
296/8 = 37
He paid $37 per book