What is the initial value of the function represented by this graph 0 2 3 5

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?  

Round each of the decimals to the nearest hundredth a. 0.596 b. 4.245 c. 53.6843 d. 17.999

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?