PLS HELP QUICK For the data set 16, 17, 18, 19, 30, the mean is 20. What is the mean absolute deviation?

a. the mean absolute deviation is 20

b. the mean absolute deviation is 4

c. the mean absolute deviation is 16

d. the mean absolute deviation is 5

Find the values of the variables and the lengths of the sides of this kite.

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.

Robin and john each a a 12 inch pizza about how many square inches of pizza did they eat? estimate how much pizza they ate