Hey could you me with this maths question you

Working on itts i’m going to need you to me as i go along 1-5

In which form is the following function written? y = - 2(x – 3)(x + 5)

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?