With 6-8. combine like terms to simplify.

6. 3v + w + 8 - 2v + 2
7. 8c^2 + 6c - 2c^2 - 5c
8. z + 5e +3z + 13 - 8 -2e

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?

Write and solve a real word problem that involves determining distance on a coordinate plane

Which graph represents the function g(x) = |x + 4| + 2?