Answer:
The answer is below
Step-by-step explanation:
The slope of a line (m) is given by:

Two lines are parallel if they have the same slope and perpendicular if the product of their slope is -1.
1)

Since the product of their slope is -1, they are perpendicular
2)

Since the slope is not the same or product of their slope is not -1, they are neither parallel or perpendicular
3)

Since the slopes are the same, they are parallel
4)

Since the slopes are the same, they are parallel
5)

Since the product of their slope is -1, they are perpendicular
15,000 I believe. I don't have a lot of experience with this
You multiply the fractions like this:
1/10 * 2/9 = 2/90
Then you reduce it.
1/45
So 1/45 of the athlete's annual income is payed to the assistant. <span />
C (3,1)
There is the answer and also a check to make sure hope this helps
I only know the answer to the first question which is 5.