Jeff and Nina each start a child-care service. Jeff spends $50 on supplies and plans to charge $10 per hour.
Nina spends $30 on supplies and plans to charge $8 per hour.

How many hours will Jeff and Nina have to work in order to earn the same amount of money?

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll

Answer! if you don’t mind, can you explain