I need help please me ​
for part 2 what is the domain

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?  

Fran has 7 sheets of paper for a coloring project. if she only uses 1/3of a sheet of paper per draing how many drawings can ahe make?

The function f(x) is shown on the graph. what is f(0)? a. 0 only b. –6 only c. –2, 1, 1, and 3 only d. –6, –2, 1, 1, and 3 only