You can fit 67 crops with a gap of 12 feet between each one.
804/12=67
I know this is not an answer but, I love your handwriting!
It is soooo much neater than mine!
- Laura <3
Your answer is: 3. 3 hours, 18 minutes
The original expression is given by:

The correct way to rewrite the expression is given by:

For this, we use two properties:
Associative property:
The way of grouping the factors does not change the result of the multiplication:
Commutative property:
The order of the factors does not vary the product: