Irina has 3 hours to finish her final math exam. keeping in mind that there are 60 minutes in 1 hour, how much time, on average, does she have for each question if there are 45 questions on the exam?

Write the sentence as an equation. z plus 372 is equal to 160

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?