HURRY PLEASE IM BEING TIMED 46 points! Which error did Carolyn make while solving the system of equations

Do something that you've always wanted to do. do something crazy, out of the ordinary but stay in your lanejaja hope it : d

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.