Ava is saving up to buy a new phone. She already has $100 and can save an additional $6 per week using money from her after school job. How much total money would Ava have after 9 weeks of saving? Also, write an expression that represents the amount of money Ava would have saved in ww weeks.

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?