Three runners compete in a race. In how many ways can the runners complete the race assuming:
a there are no tied places b the runners can tie places?

Dis the answer for this question

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.

5/$%! /7646*\! /×+××/$÷_857$,! 5+*57478eyr7 so the correct answer is 846=8÷6÷*3. hahahah