At a community barbecue, Mrs. Meyer and Mr. Montgomery are buying dinner for their families. Mrs. Meyer purchases 2 hot dog meals and 3 hamburger meals, paying a total of $40. Mr. Montgomery buys 1 hot dog meal and 1 hamburger meal, spending $15 in all. How much does one hot dog meal cost?

What is the value of the expression "two less than six times the diffrence of a number and five" when n = 9?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

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?