Will give brainliest Plz I need help

put like terms together.orremember that the 45 becomes negative when moved to the other side.orthe minuses cancel out.

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.

The equation i believe is 4+ i am not sure about the part: the number of weeks in a group of days so i can't you on that part