Firstly, you want to multiply (f^4)^2. 
Next, multiply everything on the numerator. 
Next, divide. 
Now remember that f^-2 = (1/f^2), so just convert the negative powered exponent to that, and your answer will be 
B because B is the answer
Think these are the answers to the first few hope it helps
Answer:
t test for one mean.
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Step-by-step explanation: