Solve the Cost Equation: Notebook Price at 30% More Than Pen

To find the individual prices of the notebook and pen:

• Define the price of the pen as $x$ .

• The notebook price, therefore, will be \( 1.3x $because it is 30$

  Combine like terms to simplify:

  $2.3x = 18.4$

  To find $x$, divide both sides by 2.3:

  $x = \frac{18.4}{2.3}$

  Calculate $x$:

  $x = 8$

  Thus, the price of the pen is 8. Now calculate the price of the notebook:

  \( 1.3x = 1.3 \times 8 = 10.4

  The price of the notebook is 10.4$.</p><p>Therefore, the solution to the problem is: <strong>Notebook 10.4$, pen 8$.