We have to take out the greatest common factor from the given polynomial to factorize the expression. If you observe the terms of the polynomial, the greatest factor that is common to all the terms is

. So taking it out as common, the factorization of the polynomial will be:

So the option C gives the correct answer
The equation is 
Step-by-step explanation:
Let us revise how to make a variable subject of an equation
- Write the equation and circle the variable you want to make it subject
- Keep it in one side and move all other in the other side
- Make the coefficient of the subject 1
∵ A =
× b × h
∵ b is the subject
∴ Multiply the two sides by 2
∴ 2A = b × h
- Divide both sides by h
∴ 
- Switch the two sides
∴ 
The equation is 
Learn more:
You can learn more about the equations in brainly.com/question/10708697
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Transitive.
Associative is (a + b) + c = a + (b + c)
Commutative is a + b = b + a
Reflexive is a = a
Thus, transitive is the correct answer.
Hope this helps!
Answer:
Total area: 314 km
Area of the 90 arc: 78.5 km
Step-by-step explanation:
total area/4
314/4=78.5 exactly