Howard works 7 hours each day. he earns $8.00 per hour. which number sentence shows the total amount of money he earns in one day? the answers are as follow 7+8 = 15 , 8-7 = 1, 7x8=56 or 8x8 = 64. select one answer

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?