Answers created by Audry T.

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• How do solve the following linear system?: `7x-2y=8 , 3x – 4y = 7`?
  
• How do you find 4x − 2y − z, if x = 2, y = 3, and z = −10?
  
• `m/_ABC = 39°`. What is its supplement and complement?
  
• Greenville is 1,200 miles west and 90 miles north of Johnson City. How long is a direct straight line route from Greenville to Johnson City?