ziva is an organic lettuce farmer, but she also spends part of her day as a professional organizing consultant. as a consultant, ziva helps people organize their houses. due to the popularity of her home-organization services, farmer ziva has more clients requesting her services than she has time to help if she maintains her farming business. farmer ziva charges $25 an hour for her home-organization services. one spring day, ziva spends 10 hours in her fields planting $130 worth of seeds on her farm. she expects that the seeds she planted will yield $300 worth of lettuce.