Problem 6: A car detailing shop tracks their workers' labor, water bills, and consumables on a weekly basis. The data abstracted from a particular week are shown in the table. Labor (hr) Water (gal) Consumables (oz) mm:- a. Calculate the labor productivity. b. Calculate the multifactor productivity for that particular week if workers average $25 per hour, water costs $1.50 per thousand gallons, and consumables are $4 per ounce. c. The business owner wishes to introduce a semi-automated system which will increase the number of cars serviced to 125 units Without increasing worker's labor. water bills and consumables. What will be the improvement on productivity (measured in cars I dollar)