Amy loaned $5 to each of 20 people. She recorded each loan by writing −5 in her bank book. What is the total change in the amount of money Amy had before the loans?

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.