Find the missing part of the proportion 12/x = 3/7 x= _

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?

Amy is plan her school's new basketball court. the west edge of the basketball court is located on the line y = 5x + 2. the east edge cannot intersect with the west edge. on which line could the east edge be located? −y − 5x = 100 y + 5x = 100 −5x − y = 50 5x − y = 50

The ratio of white marbles to blue marbles in connie's bag of marbles is equal to 2: 3 there are more than 20 marbles in the bag . what is a possible number of white marbles and blue marbles in the bag.