Enter the number of cups of pineapple juice francine uses for 1 cup of oranger juice

How do i do this using elimination 2x+3y=12 x-y=6

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?