Final answer:
The firm has a total of 1,350 hours of production time available.
Step-by-step explanation:
The firm has 800 hours of production time available in its cutting and sewing department, 300 hours available in its finishing department, and 250 hours available in its packaging and shipping department. To find the total available production time, we need to add up these three values. So:Total production time = 800 hours + 300 hours + 250 hours = 1,350 hours