Incorrect. If she travels 80 miles in one day, then she will travel $\displaystyle{80}{x}\usepackage{cmbright}\Huge\$ miles in x days. This will leave her with $\displaystyle{y}={3},{280}-{80}{x}\usepackage{cmbright}\Huge\$ miles to travel after x days. You need to find the number of miles left to travel when $\displaystyle{x}={25}\usepackage{cmbright}\Huge\$ .