A sample of 100 receipts from a restaurant showed that 12 had errors. What is the 95% confidence interval for the proportion of all receipts that have error? Note that z 0.025 = 1.96 and t 0.025 = 1.984 for 99 degrees of freedom?

Sally has a photograph that has an area of 35 square inches. She creates 2 enlargements of the photograph. The enlargements have areas of 140 square inches and 560 square inches. In each photograph, the length is 1 2/5 times the width.

What are the rules for multiplying powers with the same base, dividing powers with the same base, and raising a power to a power

Nina thought of a number. She called her number y. She added 14 to her number, divided the result by 6, and she got 12. What was y equal to?

Paula completely covered a square wall using 87.5 ft2 of wallpaper without any overlap. Which measurement is closest to the side length of this wall in feet? A) 22ft B) 44ft C) 9ft D) 7ft

John has two colored varieties of water bottles: white water bottles and black water bottles. The total number of water bottles is 20. He sold a white water bottle for $1 and a black water bottles for $2 and earned a sum of $35.

Kevin uses 84 fluid ounces of water to make an all purpose cleaner to directions call for 4 fluid ounces of concentrated soap for every 3 cups of water how many fluid ounces of soap should he use

Find the perimeter of the rectengle 98 sq feet 7ft

Kudrey was making a box plot. He first plotted the least and greatest data values. He then divided the distance into half, and then did this again for each half. What did kudrey do wrong and what did his box plot look like?

If an angle is acute, an angle supplementary to it is (always, sometimes, or never) acute

If Ben has 4 more than twice as many stamps as Jake, which of the following expressions shows the number of stamps Ben has?