About 35% of your credit score is about payment history
The expression is not factorable with rational numbers.
For the table 0.2 would be (1/5) 0.5 would be (1/2). And 0.7 would be (7/10).
For number 2 I would say the denominator changed each time
The answer is 184. 2711
Round it off is 184
Hope that helped :D