*Only three of the four will be used and they must be in the correct order* Arrange the systems of equations that have a single solution in increasing order of the x-values in their solutions. Worth ten points!

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?