What is −20÷4/5?please help me

−25

−16

−1/16

−1/25

What properties allow transformation to be used as a problem solving tool

Will gve pints stars and brainliest

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?