Sam has $42.85 in quarters. how many quarters does he have?

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) .

What is the perimeter of a rectangle if the length is 5 and the width is x?

What is the equation of the parabola with focus (-1,-1) and directrix y=1?