Maths is one of those subjects that is essential subjects because we use it in every day life and is a must to know.
I agree with all of the answers for Q3 but there needs to be a extra which just sum all of them in one.
The reason for this is that everyone even if they did not attend school because from a young age we are taught it. The importance of it in every day life is that we do use even simple maths like counting down, for example counting down the traffic lights. Even though people don’t agree it’s importance they are not taking in account of everything else.