help pls (I’ll give 80 pointsss)

Select the sequences that are geometric.

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.

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)