How many times smaller is 2 × 10-8 than 4 × 10-5?

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

What multiplys to be 1 but adds up to be 4

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?