Since value of k is same for y/x for all values in the table so, y varies directly with x
And equation is: 
Step-by-step explanation:
We need to find if y varies directly with x from the values given in the table.
If y varies directly with x then we have the equation:

where k is constant of proportionality
or we can write

If k is same for all values of x and y when (y/x=k) then we can say that y varies directly with x.
if x = -20 and y=45 then k is:

So, value of k is -2.25
if x = 1 and y=-2.25 then k is:

So, value of k is -2.25
if x = 12 and y=-27 then k is:

So, value of k is -2.25
Since value of k is same for y/x for all values in the table so, y varies directly with x
And equation is: 
Keywords: Direct Relationship
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Answer: A.Median; because the data is not symmetric and there are outliers
Step-by-step explanation:
From the given dot plot , we can see that the data plot is skewed not symmetric .
Aldo there are outliers at 9 since most of the dots are between 0 to 4.
We know that the median provides better description of the center of the data then mean when the data is skewed.
Therefore , the median is a better center for this data because the data is not symmetric and there are outliers.
Answer:
10.25 gallons
Step-by-step explanation:
432 miles / 6 gallons=72 miles to gallon
738 miles / 72 miles per gallon=10.25 gallons
20 because 70 divide by = 35