V = 5x + 2y x= 3
y=-4
a) Work out the value of V
b) Expand 3p(p + 5)
c) Solve 4(k - 6) = 20

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?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

What is the area of the triangle 10 13 12