Hannah has 51 yards of ribbon that she is using to make some crafts. Each craft requires 4 yards of ribbon. If Hannah makes as many crafts as possible, how many crafts will she make? How many yards of ribbon will be left? A. 12 crafts with 3 yards left over B. 12 crafts with no yards left over C. 11 crafts with 7 yards left over D. 7 crafts with no yards left over

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Me. i can't figure out this question. give an explanation too. .

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?