Four red boxes and two black boxes cost $40. five red boxes cost $20. all red boxes cost the same. all black boxes cost the same. what is the ratio of the cost of a red box to the cost of a black box.

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.

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

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?