Luke saw a winter jacket he wants to buy on sale for 40% off. If the jacket normally costs $138, how
much money will Luke pay for it?

Please help.. quick!

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) .

How many solutions does the nonlinear system of equations graphed bellow have?

X+ y = 5 ; x - y =3 solve using linear combination