How do i use systems of equations to eliminate two problems that are: -9x+2y=-24 and -x+2y=8

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.

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Determine which postulate or theorem can be used to prove that lmn =nmo