50 points help asap :(

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

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?

Can someone me with this problem i don't understand i need