Which set of ordered pairs below is a function? A {(3,–2); (5,–3); (7,–4); (9,–5)}

B {(3,–2); (3,–12); (9,–2); (12,–2)}

C {(4,–2); (5,–3); (7,–4); (7,–5)}

D{(4,–2); (4,–3); (4,–8); (4,–9)}

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?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6