Not sure if i did these three questions .. it would be greatly appreciated.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

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

How can you find the mean absolute deviation (mad) for this set of data?