Ineed remembering the steps to solve for x
3x-(3+2)=18

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?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

This is about circle theorems. someone asap : (