I need this right now, please

The graph of g(x) is a translation of y = which equation represents g(x)?

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?  

2.5 milligrams is equivalent to how many grams