Answer: Please see below for answers.
Explanation:
Variable costs are referred to as costs incurred to a company which change as the volume of production by the company or business changes that is when the volume of production increases, the costs increases , and decreases with decreased production.
Fixed costs are expenses incurred to a company which do not change in relation to the volume of production by the company or business that is when the volume of production increases or decreases, the costs remains the same.
a. Supervisor of the Drilling Department----- Fixed cost
b.Oil used to lubricate drill press machines---- Variable cost
c.Propane for forklift trucks used to move the material from the Drilling Department to the Assembly Department---- Variable cost
e.Natural gas used to heat the plant----- Variable cost
f.Security guard---- fixed cost s
g.Insurance on factory building----- Fixed costs
h.Electricity to power drill press machines---- Variable costs
.i Rent of factory building-Fixed costs