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Why is it important for students to establish some common values before beginning a discussion

Hatchell landscape architecture firm worked on which two of the following projects

Plzzz me needs a hyphen or no hyphen 1. laura, a friendly little girl, says hello to everyone she passes 2. my uncle is well known jazz musician 3. our school's winning football record is welll known 4. the angry looking woman was having a heated discussion with the store manager.