conversations.from: human
conversations.value: Break down this math problem: Mark plants some strawberries in his backyard. Every month, the number of strawberry plants doubles. After 3 months, Mark digs up 4 strawberry plants and gives them to his friend.  If he still has 20 strawberry plants, how many did he initially plant?
conversations.from: assistant
conversations.value: First, add the 4 plants Mark gave away to the 20 he has left: 4 + 20 = 24
  Then divide this number by 2 to find how many plants Mark had after two months: 24 / 2 = 12
  Then divide that number by 2 to find how many plants Mark had after one month: 12 / 2 = 6
  Finally, divide that number by 2 to find out how many plants Mark initially planted: 6 / 2 = 3