Information for Blue Gruber, Inc. for the current and prior months is provided below: Cost Item Activity in Units Cost Rent Expense Current Month 19300 $49500 Prior Month 9650 49500 Factory Labor Current Month 19300 79200 Prior Month 9650 39600 How would the costs for "Rent Expense" and "Factory Labor" be classified? Rent Expense is a variable cost and Factory Labor is a fixed cost. Rent Expense is a fixed cost and Factory Labor is a variable cost. Both Rent Expense and Factory Labor are variable costs. Both Rent Expense and Factory Labor are fixed costs