You may have used 56 as the base and multiplied $\displaystyle{1.75}\cdot{56}\usepackage{cmbright}\Huge\$ . When you rewrite a sentence as an equation, remember that "is" becomes =, and "of" becomes multiplication. So the correct equation is $\displaystyle{56}={1.75}\cdot{n}\usepackage{cmbright}\Huge\$ . The answer is 32.