Find the surface area of the plane 2x + y + 2z = 16 cut off by x = 0, y = 0, x = 2, and y = 3.

What is the value of the definite integral 10∫ x dx?

The value of the double integral ∫12 ∫0y/2 y dx dy is:

If f(x) = x3 - 6x2 + 9x + 1, then the local maximum and local minimum values of f(x) are, respectively: