What is the measure of each angle of a regular octagon? If necessary, round to the nearest tenth.

Iknow one of the answers is a and maybe b but not 100% sure about b

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.