conversations.from: human
conversations.value: A basic manicure starts at $35 while a pedicure starts at $40. A certain salon offers 20% off if you get both. Suppose Karen chooses to do both and would also like to add nail art on each of her fingers, which costs $3 per nail. How much would she pay in all?
conversations.from: assistant
conversations.value: The cost for both manicure and pedicure is $35+$40=$75.
  The discount is $75*0.2=$15.
  So, Karen would only pay $75-$15=$60 for both services.
  The cost of the nail art for 10 fingers is $3*$10=$30.
  Therefore, Karen would pay a total of $60+$30=$90.