Engineering Business Costing Questions Help

Hi everyone,

I am taking the chance to ask a question for information on steemit, as it is a great community with great minds

I am struggling with these questions due to the fact that we were told to study it on our own, the unit is tricky but there is not much information online therefore I really hope someone could help me out on these or at least give some helpful information.

These are all of them:

I think the first task and second task have some things in common,

I am not asking for full answers or full assignment written, I just need some information to help me get through these tasks, I don't understand the terms much. I like business and would like to complete this unit some how.

If any of the answers are useful to any of you I will also be very happy about that

Thank you, in advance

Follow me for many interesting and inspirational posts @roselilly