If you have a bag of marbles, with eight of them being the blue, four are yellow, and six green. if you wanted to make a probability of selecting yellow marble 30%, how many yellow marbles could you add to the bag?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

What is the ratio of the length of an object in yards to the length of the same object in miles?

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?