The diagram shows a door that has a window in it. The front faces of the door and the window are similar rectangles that have the dimensions shown.

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

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.