Is there a relationship between the distance and the sum? Is there a relationship between the distance and the difference

Hi, can anyone show me how to do this problem? 100 points for this. in advance

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

I’m really confused and need your assist me with this question i’ve never been taught