A photograph shop has a self-service photo center that allows you to make prints of pictures. Each sheet of printed pictures costs $8. There are four 3 inch by 5 inch
pictures and two 4 inch by 6 inch pictures per sheet. You want at least 16 pictures of
any size and are willing to spend up to $48.
Write and graph a system of inequalities that models the situation.
Will you be able to purchase 12 pictures that are 3 inches by 5 inches and 6 pictures
that are 4 inches by 6 inches?

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?

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?