Three notebooks cost $6 at a constant rate. How much do eight notebooks cost?
Please select an answer first.
Correct answer: A
The correct answer is $16.
- Identify the proportional relationship: Compare the quantities and determine the constant of proportionality or unit rate.
- Use the relationship: The unit price is dollars, so dollars.
- Check the result: Substitute the values back into the equation or compare the unit rates to verify the answer.
The unit price is dollars, so dollars.
