Given the following cost and activity observations for George Company's utilities, use the high-low method to calculate George s variable utilities costs per machine hour. a. $100.00 b. $1.00 c. $10.00 d. $0.10 Costs that, remain constant in total dollar amount, as the level of activity changes ate called a. fixed costs b. mixed costs c. product costs d. variable costs In a cost-volume-profit chart, the a. total cost line begins at zero b. slope of the total cost line is dependent on the fixed cost per unit c. total cost line begins at the total fixed cost value on the vertical axis d. total cost line normally ends at the highest sales value Given the following costs and activities for Dance Company electrical costs, use the high-low Dance's variable electrical costs per machine hour