Which expression is equivalent to 3sqrt. 2y^3 • 7sqrt. 18y, if y>0?

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Astore sells 4 apples for $3 and 3 oranges for $4 if pete buys 12 apples and 12 oranges how much will it cost

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2