Acomputer depreciates at a rate of 1/2 the original value every two years it's a computer now cost $75 after six years how much did it cost when you bought it new

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

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?

Tan198=asin164=? how to solve this? ?