how many combinations of outfits can I make with 12 t-shirts 10 sweatshirts 8 jeans 6 shorts and seven sweatpants​

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