Need help on this one too

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

How does reflecting or rotating a figure change the interior angles of the figure?

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