John answered 80% of the questions correctly. There were 30 questions on the test. How many questions did John answer correctly?

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 this system of equations. 12x − 18y = 27 4x − 6y = 10

In a column proof the right column states your reasons