On a really hot day, which temperature scale (left({ }^{circ} mathrm{F} ight.) or (left.{ }^{circ} mathrm{C} ight))

On a really hot day, which temperature scale \(\left({ }^{\circ} \mathrm{F}\right.\) or \(\left.{ }^{\circ} \mathrm{C}\right)\) registers the greater number? On a really cold day, which temperature scale registers the smaller number? At what temperature do the two scales register the same number?