Which best describes word choice in an argumentative essay? It is the writer's use of sentences to connect ideas. It is the writer's use of a respectful and fair approach. It is the writer's selection of language to convey ideas. It is the writer's use of style throughout the essay.

Firstly, we have to transform CHF to in order to work with the same currency and make the comparisson:

If

Then:

Now we can make the comparisons:

a) In Geneva the watch costs and in Manchester it costs .

According to this:

b) If we want to know by how much is cheaper, we have to substract from the expensive price the value of the cheaper price:

Therefore: