A golfer's score after playing on Friday was plus +2. His score for Saturday's round was minus -5. At the end of his round on Sunday, he was at even par, or 0. What integer represents the change in the golfer's score from the end of his round on Saturday to the end of his round on Sunday? Explain your answer.

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) .

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x