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.3 * 18 = 5.4. 18-5.4 = 12.6$
Or
.7 * 18 = 12.6$
B, 8 to 11 because general number of marbles is 8+3=11 and only 8 of all are white)
Answer:
Option C
Step-by-step explanation:
The given function is:
.
.
.
The average rate of change of this function on the interval t=3 to t=5 is given by:


Since the average rate of change is negative on the interval 3-5 seconds, it means the ball is moving downwards at an average rate of 48 feet per second.
The correct choice is C.