Suppose a sample of a radioactive substance weighs 38 mg. One year later, the sample weighs 23.5 mg. What is the half-life of this substance? (Round your answer to two decimal places.)

The owners of four companies competing for a contract are shown in the table below. if a report is released that advocates company b, which of the people having funded the report should result in the most skepticism? company owner of company company a jake adams company b company c company d debby smith henry rose rhonda baker o a. jake adams o b. rhonda baker o c. debby smith o d. henry rose