Which of the following is the coefficient in the algebraic expression 2x+y4
a.4 b. x c.2 d. y?

What is the simplified expression for 6(2(y+x))

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.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab