(6.2 x 1018m) (4.7 x 10-1°m)

(6.2 x 10^18m) (4.7 x 10^-10m)

multiply the decimal numbers first:  6.2 x 4.7 = 29.14

multiply the base ten numbers by adding the exponents:

10^18m x 10^-10m = 10^8m

now you have:

29.14 x 10^8m

that's it -- unless you need to write the final answer in scientific notation.  If so, you have to adjust the exponent for the base 10 to get:

2.914 x 10^(8m+1)

;)

Explanation:

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.