Question

HELP 1,2 AND 3 PLEASEEEEEEE

Answer 1

#1

$\\ \sf\longmapsto 6^{-3}$

$\\ \sf\longmapsto \dfrac{1}{6^3}$

$\\ \sf\longmapsto \dfrac{1}{216}$

#2

$\\ \sf\longmapsto 786700000=7.867\times 10^8passengers$

#3

$\\ \sf\longmapsto 1.584\times 10^7=15840000$