No, it's not written in scientific form because it has to be like this :
#1-10•10^#
So for 1, A is correct.
2. 1.22•10^8
3. 2.87•10^-2
ANSWER:

STEP-BY-STEP EXPLANATION:
We have the following expression

In this case, the exponents are subtracted since it is a division, therefore we would have:
Answer:
206
Step-by-step explanation:
Quotient is simply the answer to a division problem. 2884 / 14 = 206