Answer: There are 18 tulips Callie has in total .
Explanation:
Since we have given that
Number of tulips for every daisy she picks = 4
Number of daises she picks = 3
Number of tulips her mom gave him = 6
So, According to question,

So, Total number of tulips Callie has is given by

Hence, there are 18 tulips Callie has in total .