Answer:
Please edit this question, I'm not sure what you're asking. Or, include a picture.
(2x10^3) x (4x10^4) = 8x10^1
Answer 2. You just have to find wants similar and put it out front and then leave wants left in parentheses
Answer:

Step-by-step explanation:

The common denominator of both fractions is 8. Therefore,, divide the denominator of each fraction, then multiply what you get by the numerator of each fraction.
Thus:


