Collowing are costs for eight different items. Costs are shown for three different levels of units produced and sold. Classity each of the eight cost items as either variable, fixed, or mixed.

Insurance on factory building

$\backslash$table$[[$Direct labor$],[$Depreciation on factory equipment$],[$Direct materials$],[$Rent on factory building$],[$Salesperson compensation$],[$Factory supervisor salary$],[$Factory utilities$],[$Insurance on factory building$]]$