Respuesta :

[tex]\begin{gathered} 6x-5=85 \\ \text{solve for x:} \\ 6x=85+5 \\ 6x=90 \\ x=\frac{90}{6} \\ x=15 \end{gathered}[/tex]

Since QS is perpendicular:

[tex]\begin{gathered} 4y=90 \\ \text{solve for y:} \\ y=\frac{90}{4} \\ y=22.5 \end{gathered}[/tex]