Answer: 
Step-by-step explanation:
The slope of line l is

Since parallel lines have the same slope, the slope of the line we need to find is -2.
Substituting into point-slope form,

Answer:
Center = (1,2) radius = 2
Step-by-step explanation:
I used Demos to graph the circle.
Then I added two line to find the center of the circle
The radius is 2
Let e = your earnings.
Let h = number of hours you work.
Since you earn $20 per hour, the amount you earn is the number of hours times $20, or 20h.
e = 20h
I don't really get what your trying to