What is the value of y in the equation 2 + y = −3?

Name the most appropriate metric unit for each measurement like a length of an carrot

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?

Find the difference (8ab+a+2) - (3ab+6)