Which group of x values is the best choice? y = 5/3x - 2
a. x = 5, x = 0, x = -5
b. x = 0, x = 3, x = 5
c. x = -3, x = 0, x = 3

The answer would be 13.5 minutes.

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.