Cost Terms [LO 2] Identify each of the following statements with fixed costs or variable costs by writing "fixed" or "variable" in the space provided. A cost that varies in total with changes in the activity level. A cost that varies on a per-unit basis with changes in the activity level. A cost that remains fixed per unit with changes in the activity level. A cost that remains fixed in total with changes in the activity level. Cost Terms [LO 2] Indicate whether each of the following costs is most likely a fixed cost or a variable cost by writing "fixed" or "variable" in the space provided. Assembly labor. The cost of material used in production. Rent. Depreciation. Fuel cost at an airline