What is the greatest common factor of 28 and 49

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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?

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?