Question

1. a) thesetofpeoplewhospeakEnglish,thesetofpeople
2. who speak English with an Australian accent 

Answer 1

The larger set is the set of people who speak English. One of the subsets are those people who speak the language but with an accent.

We can say that people who speak English with an Australian accent are people who speak English, but not vice versa.

Let $A=\{\text{people who speak English}\},$

$B=\{\text{people who speak English with an Australian accent}\}$

Every element in $B$ is an element in $A.$ So that $B\sube A.$

The second is a subset of the first, but not vice versa