Answer:
Step-by-step explanation:
If two lines are parallel then they will have the same slope. So all you need to do is find the slope of the line that joins the two given points. You can use the slope formula
. You can also graph the two points and use rise over run. 
21+g or it could be(still the same thing) 21 + 1g
Answer:
6
Step-by-step explanation:
8.5 can also be written as 8.50. If you take the digits in the hundredths place, 10 and 4, and subtract them, you get 6.
5000 millimeters, 500 centimeters, and .005 kilometers.