Can sombody my little cousin with her homework! ?

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?  

Secant be and cf intersect at point d inside a what is the measure of cde

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12