Which exponent makes the following statement true?

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal