Step-by-step explanation:
Some of the property of log are as follows :
1. 
2. 
3. 
Now coming to question,
(a)
(using property 1)
(b)
(using property 2)
(c)
(using property 3)
Hence, this is the required solution.
Answer:
-4x^5+20x^4-40x^3+40x^2-20x+4
Step-by-step explanation:
67.50 divided by 2.50 = 27,
So 27 videos were rented, hope this helps!