A: (10, 0)
B: (13, 331.5)
C: (16, 672)
D: (18, 864)
E: (20, 1000)
F: (22, 1056)
G: (24, 1008)
H: (26, 832)
I: (28, 504)
J: (30, 0)
V(l) = (((-(1 / 2)) * (l * (l - 10))) * (l - 30))