The wedge below has a 4x4 square base, and a height of 5. 1) What do the cross-sections look like? Do they vary in size as we move along the x-axis and y-axis? 2) If we integrate along the x-axis, what would be our limits of integration? 3) If we integrate along the x-axis, what would be a formula for the area of a cross-section an any value of x? 4) Write the integral that expresses the volume of the wedge, and evaluate.