Answer:
x+ x+2+ x+4+ x+6 = 668
4x+12 = 668
4x = 668-12
4x = 658
x = 658/4
x = 164
x+2 = 164+2
= 166
x+4 = 164+4
= 168
x+6 = 164+6
= 170
Hope it helps u mate.....
<h3>
Answer:</h3>
, or 
<h3>
Explanation:</h3>
Use the Keep Change Flip method. Change the sign to multiplication and flip the second fraction. 
Multiply the numerators and the denominators separatley. 
This cannot be simplified further, but it can be converted to a mixed number (as opposed to an improper fraction). 
Step-by-step explanation:
EQUATION: Volume=length x width x height.
V=l×w×h
1620cm^3=9cm×9cm×xcm
1620cm^3=81cm^2 ×xcm
xcm= 1620cm^3/81cm^2
xcm= 20cm
21 and download math papa
F(g(x)) = 2(5x+1)-6 = 10x+2-6 = 10x-4
g(f(x)) = 5(2x-6)+1 = 10x-30+1 = 10-29
10x-4>10-29 because from f(g(x)) you subtract less quantity.
The answer to your question is C. I hope that this is the answer that you were looking for and it has helped you.