Kyle is making 9 birdhouses. he uses 8 nails for each birdhouse. if kyle has a box of 100 nails, how many nails will he have left after he makes the birdhouses?

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.

Ithink the answer is b.

Were is the problem