The answer is B-about 18km
This is because you round 18.23 to 18km
then you round 13.94 to 14km
you add these rounded numbers together
you take it away from 50km
the answer would then me 18km
but it be ABOUT because that was only a rough estimate because it was rounded
Option B
<u>ANSWER: </u>
The factors of
is 
<u>SOLUTION:
</u>
Given, cubic expression is 
Now, we have to find the factors of above equation.
To factorize the given equation, follow the below steps:

Since x is common in every term of expression, we can take it as common

“2x” can be rewritten as “x + x”, the above equation becomes,

Taking the common terms out of bracket. we get
x(x (x + 1) + 1 (x + 1))
Taking (x + 1) as common., we get
x ((x + 1)(x + 1))

Hence, the second option b is correct.
A. There is no coefficient of X.