At the library book sale, Josiah bought 12 total hardcover and paperback books for $13. Hardcover books cost $1.25 and paperback books cost $0.75. The system of linear equations shown below represents Josiah's purchases, where h is the number of hardcover books purchases and p is the number of paperback books purchased. 1.25h + 0.75p = 13 h + p = 12 Enter the amount of hardcover books that Josiah purchased.

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4

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?