Answers created by Alex F.

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• What is the derivative of #ln 5#?
  
• How do you solve the following system: #3x-y=12, 5x+2y=20 #?
  
• What is the numerical coefficient of the variable and the constant term of 6x + 5?
  
• Scott and Julio each improved their yards grass sod and ivy. Scott spent $82 on 7 ft of grass sod and 8 pots of ivy. Julio spent $72 on 7 ft of grass sod and 6 pots of ivy. What is the cost of one ft of grass sod and the cost of one pot of ivy?
  
• How do you solve # ( x+12 )/( x-4 ) = ( x-3 )/( x-7 ) #?
  
• How do you simplify #(-12t^-1 u^5 v^-4 )/(2t^-3 u v^5)#?
  
• How do you solve #31=-1/6n#?
  
• Cross products?