Whats the man absolute deviation for these numbers?

4. find the geometric mean of 4 and 12. 24 8

What is the solution to the equation 9^(x+1) =27

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.