If anyone doesn't mind helping me lol

Which equation matches the graph shown ?

Do you mind if you guys me with this question i’m on number 8

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