How can you reduce 3/4-2/3

If eh = hg and hg=16, find the diameter of k

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²