Working together jacob and kayla can clan an attic in 4.24 hours. had she done it alone it would have taken kayla nine hours. how long would it take jacob to do alone?

How to use order of operation in 20 divide by 4 multiply 5 = 1

What value of x is in the solution set of 4x – 12 s 16 + 8x?

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?