Popped is a specialty popcorn store. It offers two varieties of popcorn: plain and flavored. The flavors range from Caramel Popcorn to Dark Chocolate Drizzled Popcorn to White Cheddar Popcorn. The plain popcorn sells for $2 per box and costs $0.80 per box to make. The flavored popcorn sells for $4 per box and costs $2.50 per box to make. Popped has fixed costs per month of $3,240. Popped sells 1 box of plain popcorn for every 4 boxes of flavored popcorn. How many boxes of plain popcorn and how many boxes of flavored popcorn must Popped sell each month to break even?