Answer:
Step-by-step explanation:
Good Question but i don't know
<h2>
Hello!</h2>
The answer is:
The second option,
b.) 
<h2>
Why?</h2>
We are given the functions E(x) and K(x), since they both are function of the same variable, we need to add them in order to find the correct option.
From the statement we know the functions:

and

So, adding the functions we have:




Hence, the answer is the second option,
b.) 
Have a nice day!
21 - 4x = 108
<em><u>Subtract 21 from both sides</u></em>
-4x = 87
<em><u>Divide both sides by -4</u></em>
x = -21.75
235.24 + 45.58 = 280.82
280.82/2 = 140.41
each check was for $140.41
Answer:
the 2nd one is the answer.
x ≥ −8
Step-by-step explanation:
Hope that helps
Sorry if wrong