Write an expression containing x2-terms, x-terms, and constants. The x2-terms should combine to -2x2, the x-terms should subtract to 3-x, and the constants should sum up to 3

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?

27 is what percent of 108? 27 is % of 108

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?