A scientist uses a submarine to study ocean life. She begins at sea level, which is an elevation of 0 feet.
She descends for 111 seconds at a speed of 0.7 feet per second.
She then ascends for 36 seconds at a speed of 1.7 feet per second.

After this 147-second period, how much time, in seconds, will it take for the scientist to travel back to sea level at 4.7 feet per second? Round your answer to the nearest tenth of a second.

How much orange juice do you need to make 2 servings of lemony orange slush?

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 you find the mean absolute deviation (mad) for this set of data?