Please help i can't figure this problem out​

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

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