The dot plot shows the salaries for the employees at two small companies before a new company head is hired at each company

Place the following steps in order to complete the square and solve the quadratic equation,

Ten times the square of a non-zero number is eqaul to ninety times the number

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?