This is not an answer but let me help you understand the information:
Keith bought three notebooks for $3.75.
Keith bought three notebooks for $3.75. This can be represented as an equation:
3y = $3.75
- 3 represents the number of notebooks (independent variable).
- y represents the cost per notebook (dependent variable).
- $3.75 is the total cost.
To solve for y, we divide both sides of the equation by 3:
Cost per Notebook (Dependent Variable): $1.25 (since 3 notebooks for $3.75 means each notebook costs $1.25).
Unit Rate: The cost per notebook is $1.25.