Please Help here, i really need this joe

Answer:
The first answer choice, 4632.5
Step-by-step explanation:
At the rate of 85 feet per hour, after 5.5 hours the apprentice would have covered 467.5 square feet. Subtracting this from the total amount of 5,100 square feet, you get 4632.5, or the first answer choice. Hope this helps!
Answer:
4632.5 square feet
Step-by-step explanation:
5.5*85=467.5
5100-467.5=4632.5