Atour boat left the dock and traveled west at an average speed of 10 mph. a smaller fishing boat left some time later traveling in the same direction but at an average speed of 12 mph. after traveling for 10 hours, the fishing boat caught up to the tour boat. the tour boat left hours earlier than the fishing boat.

a. 2
b. 11
c. 10
d. 18

Sum is 17 and their difference is 3

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

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?