Which equation is true for any value of y? a : 4y to the 2nd power + 2 + (4y x 4y) + 2 b: 4y to the 2nd power + 2 + (4y + y) +2 c: 4y to the 2nd power + 2 = 4(y+y) + 2 d: 4y to the 2nd power + 2 = 4(y x y) + 2 someone i'll give you brainliest!

A is (4y)^2+2= 4y*4y+2

A is the correct answer

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.