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Fahrenheit and Celsius Scale

Convert Fahrenheit to Celsuis (Centigrade), Subtract 32 and divide by 1.8
Convert Celsius (Centigrade) to Fahrenheit, Multiply by 1.8 and add 32

Celsius Fahrenheit
-100 = -148
-50 = -58
-40 = -40
-30 = -22
-20 = -4
-10 = -14
0 = 32
5 = 41
10 = 50
15 = 59
20 = 68
25 = 77
30 = 86
35 = 95
40 = 104
45 = 113
50 = 122
55 = 131
60 = 140
65 = 149
70 = 158
75 = 167
80 = 176
85 = 185
90 = 194
95 = 203
100 = 212