Answer:
0
Step-by-step explanation:
Use the slope formula: m = 
m = 
The slope of the line is 0.
If you're describing a time, then it has to have a unit of time. We have no idea how much gas you're talking about, so second, minute, and hour are all possibilities.
Slope (y2-y1)/(x2-x1)
(10-0)/(10-8) = 10/2 = 5
The slope is 5
<h2>Answer :</h2>

_____________________________

Proabably. 5 because if there is 2 sides on a coin then you should divide 10÷2 which is 5.