Which shows 3 3/4 written as an improper fraction? 33/4, 34/3, 12/3 or 15/4?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

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?

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days