The height of a mountain is 7,735 meters. what is its height in kilometers? ?

this is one of my pre-algebra questions i have to do for summer school and i am horrible at using the metric system

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

With number 11 ( show how you got the answer)

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1