Jawabanmu

2014-02-16T20:07:44+07:00
77'F = 9'C...............................................
2014-02-16T20:07:58+07:00
77°F = ...°C
F : C = 9 (+32) : 5

77 - 32 = 45
45 x  \frac{5}{9} = 25°C