D=rt for d, if t=5hours and t=65mph

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?

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

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?