Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. which measure should shania use to find how much the scores on her tests vary, on average, from the mean score?

mode

mean absolute deviation

interquartile range

mean

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