Answer:
18-20=-2
Step-by-step explanation:
18-20=-2
18+(-20)=-2
Water freezes at 32 degree Fahrenheit.
Step-by-step explanation:
Given,
Formula for Celsius to Fahrenheit = 
x = Celsius temperature
Boiling point of water = 0°C
We will put x=0
0°C = 
0°C = 0+32
0°C = 32 degree Fahrenheit
Water freezes at 32 degree Fahrenheit.
Keywords: temperature, addition
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Answer: What table?
Step-by-step explanation: