How do we find the square root of a number

Acircle has a circumference of 28.36 units what is the diameter of the circle

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?

Awoman won a 4000-m race with a time of 12.089 min. what was her rate?