Identify the coordinates of AB after it is rotated 270° counterclockwise if A(-7, -1) and B(4,2). A'(7, 1) B'(-4,-2)
A'(-1, 7) B (2, -4)
C A (1,7) B'(-2, 4)
D A'(1, -7) B'(-2, 4)
E A'(-7, -1) B'(4, 2)

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?