Line CD contains points A (4, −7) and B (4, 8). The slope of line CD is

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.

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)