â The presence of marijuana is detected by a drug test through the presence of the active chemical THC or Tetrahydrocannabinol. Technically, what is detected is known as THC-COOH (11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid).
1 Average Riding Instructor Salary: Independent riding instructors typically charge an hourly rate for services but on average earn about $35,000 to $39,000 per year.
A Fitness Trainer or Aerobics Instructor usually receives an average wage ranging from 24000 - 36000 depending on seniority. Fitness Trainers and Aerobics Instructors earn an average salary of Thirty Six Thousand One Hundred dollars on an annual basis. Fitness Trainers and Aerobics Instructors can get the highest pay in New York, which has wages of close to $48830. These employees can receive the best pay in Professional, Scientific, and Technical Services, where they can earn average wages of $49720.