If a:b=3:2 find the value of a+b/a-b

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

What is the solution of the systems of equations? y=2/3x+3 x=-2

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.