Alfred can mow a lawn in 6 hours. Brad can do it in 5 hours. Carlos can do it in 3 hours, and Davis can mow the lawn in 2 hours.
How long, in minutes, will it take all of them working together to
mow the lawn?

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?

Which of the following parabolas opens down?

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4