The length of a rectangle is 5 units and its width is 4 units. What is the approximate length of the diagonal of the rectangle? 5 units
6.4 units
8.5 units
9 units

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?