Question

Please help.
Thank you in advance.

Answer 1

The last option is the answer.

Explanation:

1.9 × 10²⁷ / 6 × 10²⁴

1.9/6 × 10²⁷/10²⁴

0.317 × 10³

Answer 2

The second one

Explanation:

The second one is true

You just have to divide