Answers edited by Daniel Boyd

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• 40% of what is 12?
  
• Why is the metric system important?
  
• A book costs $6.75. What is the cost of 8 books?
  
• On your birthday, you deposit $540.00 in an account that pays 6% interest, compounded annually. How much is in the account 3 years later?
  
• How do you find the slope of (-2,-1) and (2,-6)?
  
• How do you solve #-3/4 x = 12#?
  
• Your car gets 19.7 miles per gallon (mpg) on a trip of 547 miles. How many gallons of gasoline did you use on the trip?
  
• How do you write #8,600,000,000 # in scientific notation?
  
• How do you convert fractions to decimal notation?
  
• How do you find the exact value of cos 7pi/4?
  
• How many factors does 85 have?
  
• What is #305 - 153#?
  
• You invest $20,000 at an interest rate of 5.2% compounded annually. What is the total in your account after 3 years?
  
• How do you write #2 51/100# as a decimal number?
  
• How do you solve #22y = -88#?