The literary world is divided in its opinion about simultaneous submissions—that is, submitting the same poem, short story, or creative nonfiction piece to multiple publications at once. Many literary magazines and literary journals discourage the practice, as it can complicate things for them: If you withdraw a submission from one publication because another has accepted the same work, the one from which you’re withdrawing might already have invested time, money, and staff resources in reviewing the work and might have been interested in publishing it as well. Some publications explicitly forbid simultaneous submissions.
The cost of a project is usually based on the estimated number of hours a writer or other freelancer will work. Sometimes the project cost is a range (such as $1,200-$1,500) and includes a maximum amount the client will pay. Other projects, especially those that are less concrete in nature, are open-ended, meaning the freelancer will be paid a specified hourly rate for every hour he/she works. Be sure to include any other expenses, such as mileage or long-distance phone costs, that the client will pay in addition to the freelancer's fee.