book
Maths Puzzle
Numerical Ability
Kathy had a party. Everyone at the party shook hands with everyone else.
How many people were at the party if there 78 handshakes?
Read Solution (Total 0)
book Other Question
Am doing this right? Is the ordered pair 5,-4 the answer for the following question
which ordered pair is a solution to 3x - 4y = -1
thanks for your help
Please do you have a simple formula for finding the centre of a 2 dimensinal circle if I know 3 points on this circle?