Questions asked by ahon

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• 1 mile-5289 feet 1 foot= 12 inches 1 inch=2.54 centimetres find the percentage error in converting miles to kilometres using the approximate conversion 5 miles= 8 kilometres ?
  
• It took 3 people 5 hours to build a garden wall. another garden wall is to be built. the new wall is the same length but twice the height as the first wall. how long will it take 5 people to build the new wall?
  
• Find out which total scores between 80 and 100 are impossible to achieve?
  
• Work out the normal price in the second shop ?
  
• How do I show that the probability of it being blue is 5/28 ?
  
• How do I show that the area of the triangle OAB is 36 1/8 ?
  
• How to use semi colons and colons ???
  
• Help please??