Using laws of exponents, what are three equivalent forms of the expression 5^-2 (i’ve already got 1/5^2 and 0.04)

The highest point on earth is the peak of mount everest if you climb to the top you would be approximately 29,035 feet above sea level at remembering that amount is 5280 feet percentage of the height of the mountain would you have to climb to reach a point 2 miles above sea level

Convert 50 kilogram to pounds. (the conversion factor from kilogram to pound is 2.2046.) a. 52.2 lb. b. 110.2 lb. c. 22.6 lb. d. 47.8 lb.

I'm confused on this could anyone me and show me what i need to do to solve it.