Stock variables flow variables

match the following in there correct group:
cash at bank
inventory
rent
income for employment
cash in hand

cash at bank
inventory

6(2x + 5y)6 (2x) = 12x6 (5y) = 30y12x + 30y

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.