A train travels for 3.75 hours at 80 miles an hour. Use the formula $\displaystyle{d}={r}\cdot{t}\usepackage{cmbright}\Huge\$ , where $\displaystyle{d}=\usepackage{cmbright}\Huge\$ distance, $\displaystyle{r}=\usepackage{cmbright}\Huge\$ rate, and $\displaystyle{t}=\usepackage{cmbright}\Huge\$ time, to find the distance the train traveled.

The distance traveled is _____ miles.