Answer
$\Delta T(R) = \Delta T(^{\circ}F) = 45 R$
$\Delta T(^{\circ}C) = \Delta T(K) = 25K$
Work Step by Step
$\Delta T(R) = \Delta T(^{\circ}F) = 45 R$
$\Delta T(K) = \dfrac{\Delta T(R)}{1.8} = \dfrac{45}{1.8} = 25K$
$\Delta T(^{\circ}C) = \Delta T(K) = 25K$