What do the unknown factor and quotient represent?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)