How to find null space of a matrix.

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

In a column proof the right column states your reasons