At what temperature (degrees fahrenheit) is the fahrenheit scale reading equal to (a) 6 times that of the celsius and (b) 1/5 times that of the celsius?

The relationship between temperature in degrees Fahrenheit, F, and degrees Celsius, C, is
F = 1.8C + 32

Part a.
If F = 6C, then
6C = 1.8C + 32
6C - 1.8C = 32
4.2C = 32
C = 7.62
Therefore, F = 6*7.62 = 45.71

45.7 °F (nearest tenth)

Part b.
When F = (1/5)C, then
0.2C = 1.8C + 32
0.2C - 1.8C = 32
-1.6C = 32
C = - 20
Therefore, F = 0.2*-20 = -4

-4 °F

Honestly "global warming" may be a slight possiblity, however they called it "climate change" because its not real, in fact we had one of our coldest days here not too long ago, and the "issues" with this subject is a blindfold for actual problems.