Even though this is a small assignment, it's important that all the intermediate calculations are include! My teacher has failed me before because of this, so please show everything in the results, so there won't be any doubt about how I got the result

Even though this is a small assignment, it's important that all the intermediate calculations are include! My teacher has failed me before because of this, so please show everything in the results, so there won't be any doubt about how I got the result. I have attached all the course chapters from the coursebook, which are in Norwegian. This is because 85% of the text is numbers and the rest text, so it’s easy to translate with google translator. This is important, in order to know what methods my teacher wants me to use. I've also attached the assignment. I want the text in a Word format please, with as less text as possible. in that way it is easier to translate to Norwegian.