The Canadian census agency predicted that the population of Toronto would be about 13.7 million in 2010 and increase by 5.5 per year until 2030. Write an equation in slope-intercept form where x represents the number of years since 2010, and y represents the estimated total population of Toronto (in millions).

Ibelieve the answer is b. y=0 would make the line horizontal across the x.

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.