How many gallons of a 60% antifreeze solution must be mixed with 100 gallons of 30% antifreeze to get a mixture that is 50% antifreeze? Use the six-step method.

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

The base of a rectangular pyramid is 13 inches long and 12 inches wide. the height of the pyramid is 8 inches. what is the volume of the pyramid

Asugar cube is inch on each edge. how much volume does it occupy?