Identify the degree, the leading coefficient, and the constant value of the polynomials H(x)=8 - 2x^7 + x^2 - 5x^3

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?

How do you find the circumfrance of a circle?

Simplify. 3(4+4x) (type your answer in with no spaces)