Mathematics Homework Help

I have attached my previous assignment answers and it’s questions and grading criteria (all combined, my answers start on pg. 7), please check my work (combinepdf 2) to that criteria.

Please pay attention to my rounding and explanations (particularly the last page), as I am unsure about them.

Questions are in one document (Problems_2) and my answers are in the last one separate (combinepdf 2).