Do all three questions for brainliest.

3. solve by graphing: y = 2x + 6 x + y = -3

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?

Divide. write in simplest form 41/6 divided by 10