Are there any numbers that are not included in the real number system?

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet

Which system of linear inequalities is represented by the graph?