Solve the following proportions /18 = 8/72

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Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2