Danielle knows that a dollar bill is half a foot long. how could she use the dollar to measure a mat for her desk that should be 1 2/3 ft. by 5/4 ft? (btw i'm in middle school not highschool)

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?