Can you help me with this ignore my answers please!

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) .

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?