Which choice has a digit in the ones place that is exactly five times the value of the diget in the tens place

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?

Which expression gives the exact value of x?

Which equation represents a line that passes through the point (9, -4) and has a slope of 3/5?