How do i convert 8.25*10^2 cg to nanograms?

1 cg = 10^-5 kg
8.25 * 10^2 cg = 8.25 * 10^-3 kg

10^-12 kg = 1 nanogram
8.25 * 10^-3 kg = 8.25 * 10^9 nanograms

Therefore, 8.25 * 10^2 cg = 8.25 * 10^9 nanograms.

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.