Can someone please show me what I did wrong?... By how many Celsius degrees does the temperature fall in the 24-hour period?

The Sahara desert with a very arid climate is one of the hottest regions in the world. Its average temperature is above 30°C or 86°F. In a 24-hour period, the temperature can go from a day-time high of 94°F to a low of 33°F at night. (a) By how many Celsius degrees does the temperature fall in the 24-hour... show more The Sahara desert with a very arid climate is one of the hottest regions in the world. Its average temperature is above 30°C or 86°F. In a 24-hour period, the temperature can go from a day-time high of 94°F to a low of 33°F at night.

(a) By how many Celsius degrees does the temperature fall in the 24-hour period?

(b) By how many Kelvin degrees does the temperature fall in the 24-hour period?

I got 16.1 and 289.3 respectively, can someone please show me what I did wrong?
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