Samuel walked in the labor day parade he walked 3 1 8 miles along the parade route

Plz heeeeeeelp plz give me the answer

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?