3. 8.1
Looking at the functions "average", and "mystery" it's pretty obvious that "average" returns a double precision average of the value of an integer array. The function "mystery" returns an array of integers with each value in the array being the length of the string in the array of strings passed to "mystery" in the same ordinal position.
The main body of the code initializes an array of strings and then passes that array to "mystery" who's output is then passed into the function "average". Since the lengths of the words passed to "mystery" is 7, 5, 6, 10, 10, 8, 13, 6, 8, 8, the sum will be 81, so the average will be 81/10 = 8.1 which matches option "3".
Communication comes in lots of types, therefore, it also has lots of goals and purposes. One of the purpose of communication is to satisfy instrument goals. Instrument goals here refers to the goal that focuses on convincing others to act in an appropriate way. This is most applicable in situations when someone had to deal with others.
Inertia would keep them going the same speed as the car was going. therefore, the person not wearing a seatbelt would be sent flying forward, probably ending up dead
