Jon has to pay a fix-it man $60 to come to his house and $30 per hour after that how many hours did the fix-it man work if jon paid him $360

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 can you tell when x and y are not directly proportional?

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition