Pls help
The options are
A.20 years
B.55years
C.45years
D.35 years

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?

Find the values of y: 3y^3(y^2+ 2/3y)=0

Use circumcenter theorem to solve for the given values