Answer:
1,00000,00,00
Step-by-step explanation:
The answer is B.




If you find a common denominator, the process becomes much easier. I hope this was helpful.
'consequently' or 'accordingly'.
(Now you know why we usually use 'so'.)
if you meant x^2+9x+20 then it is (x+4)(x+5) you know that because 4+5=9 and 4x5=20 using FOIL