End behavior of function

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?

The graph of g(x) is a translation of y = which equation represents g(x)?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys