Final answer:
To meet his goal, Tony needs to sell 1,400 bottles each month.
Step-by-step explanation:
To find out how many bottles Tony needs to sell each month to meet his goal, we can divide the total number of bottles by the number of months:
- Total bottles to sell = 4,200
- Total number of months = 3
Dividing 4,200 by 3, we get:
4,200 / 3 = 1,400
Therefore, Tony needs to sell 1,400 bottles each month to meet his goal.