Incorrect. When you are adding numbers with different signs, you must first find the difference of their absolute values. Here it would be $\displaystyle{63}-{49}={14}\usepackage{cmbright}\Huge\$ . Then compare $\displaystyle{\left|-{49}\right|}\usepackage{cmbright}\Huge\$ and $\displaystyle{\left|{63}\right|}\usepackage{cmbright}\Huge\$ . Since $\displaystyle{49}<{63}\usepackage{cmbright}\Huge\$ , the positive addend (63) has a greater absolute value than the negative addend ( $\displaystyle-{49}\usepackage{cmbright}\Huge\$ ). So the sum is positive. The correct answer is 14.