Hearing depends on a series of events that change sound waves in the air into electrical signals. Your auditory nerve then carries these signals to your brain through a complex series of steps. Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum.
However, if your child is 21 or older and you pay him $1,700 or more during the year, you can withhold Social Security and Medicare taxes from his pay. If you choose not to withhold the taxes, you must pay your adult childâs Medicare and Social Security taxes yourself.
The United States Department of Labor mandates that you pay your child no less than minimum wage, with one exception: If your child is younger than 20 years old, you can pay her $4.25 an hour during the first 90 days she works for you. After 90 days, you must pay your child no less than minimum wage according to federal laws.