.5. You can use the polynomial identity (a - b) = a - 3a2b + 3ab2 - bº to determine the coefficients of the terms
in the expanded form of a binomial raised to the third power without cubing the
binomial. What is the coefficient of the
x-term in the expanded form of (2x - 5)?
A-125
8
B-60
D 150

Pp= 50 pounds of apples

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.