Answer:
いくら is the question word for “how much”. You add the copula です (to be) and the question marker か to form the question of how much does something cost. これ is a demonstrative meaning “this” and refers to something closer to the speaker. それ, “
What subject is this for? I would say something along the lines of a career path and being happy. Where you would like to live, maybe college or kids
Which ever you need to use to communicate with other people
