Step-by-step explanation:
20 ml is your answer
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Answer:

Step-by-step explanation:
The equation of a direct variation is generally written as:

Where m is the slope of the equation of the direct variation line.
We want a direct variation equation that contains (6,-2).
We substitute the x=6 and y=-2 to find m.

Divide both sides by 6.


The required equation is

Answer:
31.25 minutes
Step-by-step explanation:
12.5 minutes divided by 2 (miles) = 1 mile per 6.25 minutes
6.25 x 5 = 31.25
9m +18= -6m -42
9m +6m= -42-18
15m = -60
m= -4
The slope of Helanies line is 3.