Can someone please help with my most recent math question on my page? i will give extra points

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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?

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list