There are 20 seventh graders and 15 eighth graders in a club. a club president will be chosen at random. compare the probabilities of choosing a seventh grader or an eighth grader.

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

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?