A convex polyhedron has 18 edges and 4 more vertices than faces. How many faces does the polyhedron have? Euler’s formula: V + F = E + 2

8
12
14
16

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Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.