Twelve students are entered into a drawing for four concert tickets. If the students are chosen at random, how many ways can the winners be drawn?

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?

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°