What is x+7=18-2x and show steps

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?

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate

Find the amplitude of a sinusoidal function that models this temperature variation