Sign so you
subtract
it
and
then which
lamont keeps track of his math grades by recording them
in a table. he wants to keep an average of 90, so he also
lists the amount that each grade is above or below 90.

For a 0.25 pfor b o.3pp (0.25+0.3)=0.28

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.