It took amir 2 hours to hike 5 miles. on the first part of the hike, amir averaged 3 miles per hour. for the second part of the hike, the terrain was more difficult so his average speed decreased to 1.5 mile per hour. which equation can be used to find t, the amount of time amir spent hiking during the second, more difficult part of the hike?

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?