Labelling variables

Are we supposed to label all the variables or will we get full marks if we just get to the answers?

Two questions I was just doing – Tobins Q and Vo for the H-model

The soliutions label all the variables for both equations. Do we need to do that for full marks?

In the same boat with you, i am also wondering does labling the inputs matter esp. on formulas given the time .Also am quite confused on the amount of info we shld include to support our answers , gvn their mock guideline answers