1. True, the graph's beginning represents cost before she picks any weeds.
2. False, the graph shows that the cost for he goes into the negatives, showing that she is still able to earn more money from picking weeds.
3.True, from 0 weeds to 5 weeks picked you can see the price change from $18 to $17.
4. True, once she picks 90 weeds she earns the exact amount of money needed to buy the book.
5. False, she would need to pull 90 weeds in order to not spend her own money.