Red balloons is 15 blue balloons is 10 what is the ratio of red to blue

Given: ac and db are diameters. m∠3=

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?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?