The data set below has 7 values. find the mean absolute deviation for the data set. if necessary, round your answer to the nearest hundredth. 12, 17, 16, 9, 18, 10, 9

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail 8 * angelo says he wrote a total of 8/4 miles to russell says he's wrong and he actually and says that he actually wrote to my who is corrupt use words and trying to explain how you know.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?