Classify each cost as either variable "V" or fixed "F." Wood to build the conga drum shells Electricity for factory ceiling lights to illuminate work areas Chrome drum hoops to attach drum heads to shells Factory land and building property taxes Monthly misc. factory maintenance (e.g. paint factory walls) Monthly factory window washing Night security watchman Drum heads Bass drum foot pedals Chrome cymbal stands Red and blue sparkle plastic drum covering Drum travel cases Glue to attach red and blue sparkle plastic drum covering to drums Electricity to power wood sanders to sand conga drum shells Electricity for night security lights (stay on all night, every night) Factory supervisor salary