(b) Find the lowest common multiple (LCM) of 450 and 315.

For what value of x does 4x = (1/8) x + 5?

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?

Prove that quadrilateral is a rhombus.