Two students are reading a book. Mark reads 9 pages per day. Jennifer reads 7 pages per day and has already read 20 pages. Graph the system of equations that represents the amount of pages Mark and Jennifer have read.

B-simple yes/no questions

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.