For the data set 28, 29, 30, 30, 30, 40, the mean is 31. What is the mean absolute deviation? O A. The mean absolute deviation is 6. O B. The mean absolute deviation is 18. C. The mean absolute deviation is 3. D. The mean absolute deviation is 31.​

Triangle xyz has vertices x(1,3), y(0,0)

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?