-6+x÷14=-5 solve for x

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?

Measures of the angle of r, 31 s (x+4) t (3x+9)

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?