(Solved): 23 The mercury-in-glass thermometer shown has a linear scale. At a temperature of \( 100^{\circ} \m ...

23 The mercury-in-glass thermometer shown has a linear scale. At a temperature of \( 100^{\circ} \mathrm{C}, h \) has a value of \( 28 \mathrm{~cm} \). At \( 80^{\circ} \mathrm{C}, h \) has a value of \( 24 \mathrm{~cm} \). What is the value of \( h \) when the temperature is \( 0^{\circ} \mathrm{C} \) ? A \( 0.0 \mathrm{~cm} \) B. \( 2.8 \mathrm{~cm} \) C \( 4.0 \mathrm{~cm} \) D \( 8.0 \mathrm{~cm} \)