Because $\displaystyle{p}{e}{r}{c}{e}{n}{t}\cdot{b}{a}{s}{e}={a}{m}{o}{u}{n}{t}\usepackage{cmbright}\Huge\$ , the equation for this problem is $\displaystyle{0.65}\cdot{n}={52}\usepackage{cmbright}\Huge\$ . The corresponding division is $\displaystyle{52}\div{0.65}\usepackage{cmbright}\Huge\$ , so $\displaystyle{n}={80}\usepackage{cmbright}\Huge\$ .