If jacob has an 80 in his class and gets an exam back that's worth 30% of his grade and it is a 50% score, what is his overall grade?

His overall grade is a 40, because you have to find the average

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.