country makes music makes up 75% of landon's music library. if he has downloaded 90 country music songs ,how many songs does landon have in his library

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

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?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4