Which properties are used to simplify -2/9+(2/9+2/3)-7/4+7/4 as 2/3 without first finding a common denominator? select all the apply. A)Commutative Property of Multiplication
B)Commutative Property of Addition
C)Associative Property of Addition
D)Multiplicative Inverse Property
E)Additive Inverse Property
F)Additive Identity Property

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?