The freezing point of water is $\displaystyle{{32}}^{\circ}\usepackage{cmbright}\Huge\$ . Because $\displaystyle{{35}}^{\circ}\usepackage{cmbright}\Huge\$ is above this, the water could not be frozen. The correct answer is $\displaystyle{{30}}^{\circ}\text{F}\usepackage{cmbright}\Huge\$ .