Answer:
the answer to the question is 32
It is a function because every Celsius temperature is associated with only one Fahrenheit temperature. Therefore, option B is true.
<h3>How to convert
Celsius into
Fahrenheit ?</h3>
We are given that the temperature in degrees Celsius C can be converted to degrees Fahrenheit F
We know that the formula

If we are substituting c = -40
Then, we get

For every Celsius temperature, we get only one value of Fahrenheit.
The function is one-one because for every value of Celsius we get a unique value of Fahrenheit.
Hence, it is a function because every Celsius temperature is associated with only one Fahrenheit temperature.
Therefore, option B is true.
Learn more about temperature scale here:
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The right question is that the lowest altitute is 3^8 feet
You are told that the highest altitude is 3 times the lowest altitude =>
highest altitude = 3 * lowest altitude = 3 * 3^8 feet.
Now you use the ruel of mutiplication of powers with the same base: copy the base and sum the exponents => 3 * 3^8 = 3 ^(1+8) = 3^9.
Note: remember that 3 = 3^1.
Answer: 3^9 feet - ALL CREDIT GOES TO EDUFIRST!