Determine whether the given line a positive slope, a negative slope, a zero slope, or an undefined slope.

Solve the system of equations. y= 2x y= x^2 - 15

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.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?