Gayle has a piece of plywood that is twelve feet long. Gayle is using the piece of plywood to saw off pieces of wood needed to build shelves in her room. First, Gayle saws off 3/10 of the wood. Next, Gayle saws off 6/10 of the wood. Last, Gayle saws off 2/10 of the board. Gavin says she has 2/10 of the wood left to use for another shelf. Is Gayle correct? Show all your mathematical thinking.

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.

Graph the function =gx+2x3 and give its domain and range using interval notation.