What part of an equation represents the constant rate of change?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Which value would be a solution for x in the inequality 47-4x< 7

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.