Tell whether the statement is always, sometimes, or never true. explain. 1. if x and y are supplementary angles, then x is obtuse. 2. if x and y are right angles, then x and y are supplementary angles. 3. if x and y are complementary angles, then y is a right angle. needed asap if possible, : )

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?