Which of the following is the correct expansion of (y + 2)(2y2 + y + 4)? y3 + 5y2 + 6y + 4 2y3 + 10y2 + 5y + 4 y3 + 6y2 + 5y + 8 2y3 + 5y2 + 6y + 8

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.