\dfrac14c+3d
4
1

c+3dstart fraction, 1, divided by, 4, end fraction, c, plus, 3, d when c=6c=6c, equals, 6 and d=7d=7d, equals, 7.

Aye i really don’t know this but i need more point so i am guessing it’s c. 2.0or you can use other apps to you get the 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.