Sophia had a total of 15 dimes and quarters. The tostão value of the value of the coins was $2.85. How many dimes and how many quarters does Sophia have?

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Bring the fraction a/a-4 to a denominator of 16-a^2

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?