Answer:
22
Step-by-step explanation:
did the test with that question
Answer:
flips, reflection y rotation
Step-by-step explanation:
Answer:
X=sigma xi/no of observation
5= (?) /4
5*4=sum of all numbers
20=sum of all the observation
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Answer: The required value is

Step-by-step explanation: The given functions are:

We are given to find the value of 
We know that, if s(x) and t(x) are any two functions of a variable x, then we have

Therefore, we have

Thus, the required value is

C is the answer !!!!!!!!!