What's v=xnk for x this is a formula for specified variables

49xy +34y - 72z. determine the degree of the polynomial

How do the graphs of y = 1/x and y=5/x+6 compare?

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?