When is it necessary to show all of the possible outcomes of an experiment by using a tree diagram and when is using the Fundamental Counting Principle sufficient?

What signals you that factoring by grouping is the best method to use when factoring a problem?

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

An object in geometry with no width, length or height is a(n):