Question

the pacific ocean covers approximately 64,186,300 square miles of earths surface, while the atlantic ocean stretches for about 33,420,000 square miles express both of these areas in scientific notation

Answer 1

The Pacific ocean: 64,186,300 square miles
Scientific Notation: 6.41863 x $10^{7}$ square miles

The Atlantic Ocean: 33,420,000 square miles 
Scientific Notation:  3.342 x $10^{7}$ square miles