Katie was selling her necklaces at a garage sale. she sold 4 bead necklaces and 3 gem stone necklaces if each necklace cost $3 how much did she earn.

Don't know how to find x given these segment lengths

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.

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y