Solve the Problem $y=m x+b$ Is a Mathematical Model for Actual Time as a Function

Solve the problem.
-Suppose $y=m x+b$ is a mathematical model for actual time as a function of estimated time, where $\mathrm{y}$ represents actual time and $\mathrm{x}$ represents estimated time and $\mathrm{m}$ and $\mathrm{b}$ are constants. If $\mathrm{m}=1.7$ and $\mathrm{b}=-1.1$ , find $\mathrm{y}$ when $\mathrm{x}$ is $15 \mathrm{~min}$ .

A) $16.87 \mathrm{~min}$
B) $26.6 \mathrm{~min}$
C) $13.13 \mathrm{~min}$
D) $24.4 \mathrm{~min}$