It took Peter 3 hours to drive to his friend in Connecticut when he was driving with the average speed 54 mph. How much time will the way back take if Peter drives with the average speed 60 mph? IN HOURS

One integer is 8 times another. if the product is 72, then find the integers

Three times the sum of a number and seven is negative thirty-six. what is the number?

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?