The function C (t) below relates outside temperature in degrees Fahrenheit to the number of cricket chirps per minute.
It takes as input the temperature in degrees Fahrenheit, and returns as output the number of cricket chirps per minute occurring at that time.
C (t) = 5t - 200
Which equation below represents the inverse function T (c), which takes the cricket chirps per minute as input and returns as output the temperature in degrees Fahrenheit?
a) T (c) = (c+5) / 200
b) T (c) = (c-5) / 200
c) T (c) = (c-200) / 5
d) T (c) = (c+200) / 5
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