Answer to b. NO, the dog cannot complete the task in 1 hour.
We know the square feet can be found by multiplying length x width.
34 x 20 = 680 square ft.
We know the dog needs 6 seconds per square foot and needs to be done in 1 hour.
1 hour = 3600 seconds.
3600 seconds / 6 seconds per square ft.
= 600 square ft the dog can cover in 1 hour.
The area is 680 square ft so NO, the dog cannot complete this task in 1 hour.