Please help! will mark brainliest if correct :))

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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?

Through non-collinear points there is exactly one plane.

Triangle knm is what is true about the sides of knm