Definition of zero pair

Aline that intersects one of two parallel lines intersects the other also always sometimes never

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

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?