Jamie makes 120 slides of toast and puts at most one spread (jam, butter, or avocado) on each slide. She puts jam on 1/4 of the slices, butter on 25 of the slices, and avocado on 20% of the slides. How many slices of Jamie's toast have no spread?
120 - 120(1/4) - 25 - 120 (.20) =
120 - 30 - 25 - 24 =
41 have no spread
