In a box of blocks, there are r red blocks, b blue blocks,
and y yellow blocks. which fraction expresses the ratio
of red blocks to the total number of blocks?

What is the simplified expression for 6(2(y+x))

What is the size of the matrix resulting from

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.