Mary had 25 marbles in a bag. the bag contains 10 red marbles, 7 blue marbles, and 8 green marbles. mary pulled out two marbles one at a time without replacement. what is the probability mary selected a green marbles and then a red marble?

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.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle