Six numbers are all less than 10. the greatest number is 9, and the least number is 1. the mean of these numbers is 6, the median is 7, and the mode is 8. when the number 6 is removed, the mean of the remaining five numbers is 6, the median is 8, and the mode is 8. what three numbers are missing?

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /