How do i solve _+ _+ _ = 30 using 1,3,5,7,9,11,13,15 and 17?

Does the point (1, sqrt 7) lie on circle shown.

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

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?