$31.40 and $5 in slope intercept 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?

If i have one apple and give you the apple, how many apples do i have?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10