How many squares (think about the faces) are painted on a tower that is 99 cubes tall?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Find the ratios of the corresponding sides

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