alguien por fa me puede ayudar con esto que es de mi cole y lo tengo que entregar hoy ahi esta el pdf

Which expression shows the sum of the polynomials with like terms grouped together

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.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line