6 The table below shows the number of gallons of gas a car used when traveling a
certain number of miles.
Gas Mileage
10
15
25
50
Gallons, x
Number of
Miles, y
280
420
700
1,400
The relationship between x, gallons of gas, and y, number of miles traveled, can be
y
represented by the equation k = Based on this relationship, how far can this car
X
travel on 20 gallons of gas?

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?