Question

I don't understand how to use scientific notation for this?

Can someone help me with #1, and I'll do the rest on my own?

Answer 1

(3 x 10 ^ -2) - (6 x 10 ^ -5)

= (3-6) - 10 ^ ((-2) - (-5))

= -3 - (10 ^ 3)

Answer 2

scientific notation is just either the square root or indices