In the literal equation below, what do c and f represent? f = 9/5 c + 32

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Answer this question! 30 points and brainliest! only if you know the answer.

For the equations below which statement is true ? -2x=14 6x=-42