title: Python function to calculate discount
body: <p>New to python. I am having trouble trying to make a loop to calculate discount for a lemonade stand, the example am working on is simple</p>
  
  <p>lemonade 8oz = 1.20  #no discount</p>
  
  <p>lemonade 12oz = 1.75 # for 4 and less cups</p>
  
  <p>lemonade 12oz = 1.35 discount for every 5 cups, and less then 5 the discount does not apply. example if a customer buys 8 large cups 5 will be discounted and the 3 won't be.</p>
  
  <p>Any help on how to make a function and variable for this problem. I know it is basic but am new to python.</p>