How to solve Question 3（c）？
1 answer:
From your work on parts (a) and (b), you know that
.. r = 3.50
.. s = 140
The composite index of production cost from 2007 to 2009 is 114.2.
(c) If the production cost in 2007 was RM50, then in 2011 it was
.. RM50 * (2009 index) * (2011 index) = RM50 * 1.142 * 1.200 = RM68.52
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There are 151,200 possible combinations. If you'd like an explanation of my answer, please let me know.
Option 1 =$497.5 option 2 =$494.5 option 3 =$50.5
The answer is going to be <span>327421537466</span>
(3x+1)-(x+12)
(24+1)- 20
25-20=5
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This is false because 
is an irrational number, despite being between 1 and 2.
