A tree class a shadow that is 9 feet long at the same time a person standing nearby just a shadow that is 3 feet long if the person is 5.5 feet tall how tall is the tree

Geometry answer picture question pls . reason and statements

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?  

Which representation has a constant of variation of -2.5