Respuesta :

[tex]\begin{gathered} \frac{19}{10}\text{dollars}=1\frac{9}{10}\text{dollars}=1\text{dollar}+(\frac{9}{10}\times\frac{100}{1})\text{cent} \\ \frac{19}{10}\text{dollars}=1\text{dollar}+90\text{cent}=\text{ 1dollar and 90cent} \end{gathered}[/tex]