Question

Could anyone help im really confused

Answer 1

The answer is 1.6x10^-5
Hope that helps

Answer 2

4.8x10^-8 / 3x10^-3
We will first split this into 2 fractions:
(4.8/3) ((10^-8)/(10^-3))
Now we will divide both fractions:
1.6x10^((-8)-(-3))
Now calculate:
1.6x10^-5
Your answer is the second choice.
Hope this helped!