Jeff has 8 red marbles, 6 blue marbles, and 4 green marbles that are the same size and
shape. He puts the marbles into a bag, mixes the marbles, and randomly picks one marble.
What is the probability that the marble will be blue?

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

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?