m and n are the x and y coordinates, respectively, of a point in the coordinate plane. If the points (m, n) and (m + p, n + 18) both lie on the line defined by the equation x = (y/6) - (2/5), what is the value of p? Options:
A) 1	B) 2	C) 3	D) 4	E) 5
x = (y/6) - (2/5), and so y = 6x + 12/5. The slope is 6.   (n+18-n) / (m+p-m) = 6   p = 3   The answer is 3.
<result>C</result>
m and n are the x and y coordinates, respectively, of a point in the coordinate plane. If the points (m, n) and (m + p, n + 18) both lie on the line defined by the equation x = (y/6) - (2/5), what is the value of p?