For which data set would the mean absolute deviation (MAD) be a good indicator of variation of data

Acircle has a circumference of 7.850 units. what is its radius?

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis

Find the distance between the pair of points a(-1,8) and b(-8,4)