Adelivery person uses a service elevator to bring boxes of books up to an office. the delivery person weighs 190 lb and each box of books weighs 40 lb. the maximum capacity of the elevator is 900 lb. how many boxes of books can the delivery person bring up at one time?

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

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?  

Explain how to graph a scatterplot and its regression line using a regression calculator.