Smitty's Smoothies have a fixed cost of 1600.00 per month

Smitty's Smoothies have a fixed cost of 1600.00 per month. The only variable costs Smitty incurs are for the ingredients at 50 cents per drink and labor needed to produce the smoothies at 1 dollar per drink. Smitty sells the smoothies for $3.50 each. How many smoothies does he need to sell in order to break even? Please show your work.