Mr. Lopez cuts 1
4
of a piece of construction paper. He uses
1
5
of the piece to make a flower. What fraction of the sheet of paper does he use to make the flower?
please answer in fractions

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.

The principal, real, root of: 50−−√2=7.071067817.07106781−7.0710678150 is not a perfect square