Does anyone understand (mad) i means mean absolute deviation i will award brainliest

Which number completes the inequality? 2/3 < _ < 7/9

Tell whether the two rates form a proportion

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo