Consider the following statement.
“composition of functions is commutative.”
is this statement always correct? if so, provide an example. if not, provide a counterexample.

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

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?

Two numbers have a sum of -19. one number is x. what expression represents the other number?