A plumber has a 12-foot piece of plastic pipe. He needs a piece of plastic pipe that is 6 feet, 9 inches long to repair a water line leak. How many inches of pipe will he have left after he makes the repair?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?

Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.