Can someone with question 1 and 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?  

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume