For each of the following activities, identify the flow of dollarsas either household-to-firm or firm-to-household.

Activity	Flow of Dollars
Ana spends $100 for a piano lesson.
Rajiv earns $8 per hour working at a fast-food restaurant.
Simone pays a storekeeper $2 for a quart of yogurt.
Dina earns $10,000 from 40% ownership of her family business.