Mckenna recorded the time it took six children of different ages to run one lap around the track. Using the line of best fit, which is the closest to the length of time it should take Mckenna's 8 year old son to run one lap?

3x + 4y = 5 x- 3y = -7 solve by substitution

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?

Y= x – 6 x = –4 what is the solution to the system of equations? (–8, –4) (–4, –8) (–4, 4) (4, –4)