The Sea & Sun Souvenir Shop is known for its specialty salt water taffy. Every week, Camille fills a gigantic jar with taffy to put in the storefront display. This week, she puts in 400 pieces of cherry taffy but still has more space to fill. Camille fills the rest of the jar with banana taffy, her favorite flavor. In all, Camille puts 850 pieces of taffy in the jar. Which equation can you use to find how many pieces of banana taffy b are in the jar?
