after 4 weeks, the height of the plants had grown from 6 inches to 12 inches. Write and solve a proportion to find the percent increase in the height of the plants.

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

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?