What number could replace the o so that the given system of equations has one solution? Check all that apply. y = 4x-3

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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?

Nikolas calculated the volume of the prism. his work is shown below.