Alittle will be
grace loves to download new music. she originally had 47 songs but plans to purchase 3 new songs each week. she wants to know how many songs she will have after 104 weeks. which equation should she use?
the answer choices are:
a. a104 = 104 + 3(47 − 1)
b. a104 = 104 + 3(47 + 1)
c a104 = 47 + 3(104 − 1)
d. a104 = 47 + 3(104 + 1)

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?