goat Gertrude has been tied to the corner of the shed for the last week. Gertrude has eaten down all of the grass as far as she can reach on her nine foot long chain.

dad wants to replant this grass.

At the local farm supply store he finds bags that will cover 50 square feet. How many bags does he need to buy to get the job done?

*This is one of those SHOW ALL YOUR WORK AND EXPLAIN how you got your answer problems.