What is the inverse function of the equation f(x)=-2+(x+2)^5

I'm so close to finishing all these.

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?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?