If I have a line that needs partitions and to be labeled for the fractions on a number line I there’s eight and it goes from 2 to 3 as the numerator so now we need to figure out what that or as the denominator I’m sorry so now I need to figure out what how to write the numerator soon

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?  

Can someone me with the property questions for 12 13 and 14 plz

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters