What is the interquartile range of the box-and-whisker plot shown? 54 45 43 34

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Find the domain and range of the following function f(x) = 51x - 21+ 4