What is least common multiple 8,9,10

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

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?

Arectangle has a length of 6cm by 8cm what is the length of a diagonal of the rectangle