What’s the correct answer for this?

Tori examined the pattern of exponents in the table. based on the pattern, which statements are true? check all that apply.

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?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !