BRAINLIEST I need the answer by now PLZ

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

I’m really confused and need your assist me with this question i’ve never been taught

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me