Water boils at 212°F or 100°C and ice melts at 32°F or 0°C . If the temperature of a pot of water is 55°C, what is the temperature of the pot of water in °F?	Pick one:
A) 116 ° f  B) 125 ° f  C) 131 ° f  D) 138 ° f  E) 145 ° f

Rationale: "let f and c denote the temperature in fahrenheit and celsius respectively . ( f - 32 ) / ( 212 - 32 ) = ( c - 0 ) / ( 100 - 0 ) f = 9 c / 5 + 32 f = 9 ( 55 ) / 5 + 32 = 131 ° f the answer is c ."
Answer: C