Simplify this expression
2[(13-1)^2+2]

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

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?

How can (square root of 25) ^2 be rewritten?