A scale drawing of a triangular sign has a scale factor of 1:8. Which statements are true? a. The ratio of the area of the scale drawing to the area of the sign is 1:8.

b. The ratio of the area of the scale drawing to the area of the sign is 1:16.

c. The ratio of the perimeter of the scale drawing to the perimeter of the sign is 1:8.

d. The ratio of the area of the scale drawing to the area of the sign is equal to the square of the scale factor.

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?