To obtain how much money the customer left for the tip, we need to find 18% of $34.
For this, we need to multiply 34 by 18, and then divide the result by 100. Therefore:
[tex]T=\frac{34\cdot18}{100}\Rightarrow T=\frac{612}{100}\Rightarrow T=6.12[/tex]Then, the customer left $6.12 for the tip.
