Which of the following equations is equivalent to x - y = 5?

x - 2y = 30
4x - 3y = 30
3x - 4y = 30

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe