Rewrite 128 in an expomential notion using 2 as a base

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):