The point (2, 1) is the solution of which of the following systems of equations? a. y = −2x + 5 and y = 2x + 2 b. y = −2x + 5 and y = 2x − 2 c. y = x + 3 and y = 3x − 5 d. y = −x + 3 and y = 3x − 5

What value is equivalent to 5 + [5 × (4 + 2)]? a) 35 b) 45 c) 60 d) 110

Standard deviation of 19,29,21,22,23

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.