Answer:
New price after the increase = 4.55 + (0.12 x 4.55)
Explanation:
Assuming that the new price is x.
We can find x using the below expression;
[tex]\begin{gathered} x=4.55+(12\text{\% of 4.55)} \\ x=4.55+(\frac{12}{100}\times4.55) \\ x=4.55+(0.12\times4.55) \end{gathered}[/tex]