After playing a board game, you ended up with 80 points and your friend had a final score of -20 points. By how many points did you win ?
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Arectangular prism is 3 meters long, 6 meters wide, and has a height of 9 meters. what is its surface area?

The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.