What is the mean?
12 18 10 5 11 10 8 6

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?

Which compound inequality could be represented by the graph?

The function show two sisters' savings account and the rate at which they plan to deposit money