how many sheetsof paper is needed to reach 1 kilometer thick

Question

I know that a sheet of paper is .1 milometers thick. I need to know how many sheets of paper stacked on top of each other would it take to be 1 kilometer thick. After that I need to know how many sheets of paper stacked on top of each other would it take to reach the moon if the moon is 239000 kilometers away from earth. I need this number in scientific notation.

Answer 1

1 millimeter (note the spelling) = 1 x 10^-3 meters

0.1 millimeter = 1 x 10^-4 meters

1 kilometer = 1 x 10^4 meters

(1 x 10^4) / (1 x 10^-4)

1 x 10^8