Determine which quadrants each coordinate point belong. Point A (-5, 6)
Point B (0, -5)
Point C (10, -10)
Point D (0, 0)
Point E (2, 8)
Point F (-9, 2)
Point G (-5, 1)
Point H (12, 8)
Point I (7, -9)
Point J (-5, -3)

A = Quadrant 2
B = Between 3 and 4
C = Quadrant 4
D = origin
E = Quadrant 1
F = Quadrant 2
G = Quadrant 2
H = Quadrant 1
I = Quadrant 4
J = Quadrant 3

Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.