Which of the following if rational( )
a)
b)log2 c)1.23123... d)none

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?

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74

Simplify the following expression 48^1/2