Which ordered pair is a solution of the equation?
y=-2x+5

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?

This is so hard and it’s for a test

Describe a situation that you could represent with the inequality x< 17