Put a check by all the prime numbers.
2 answers:
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Answer: C
Step-by-step explanation:
To solve for 12, we can use eliminate or substituion to solve our system of equations. Let's use elimination method.
Let's add the equations together. This way, 3f+(-3f)=0
[divide both sides by -4]
Now that we know k, we can plug it into either equation to find f.
[multiply]
[subtract both sides by 12]
[divide both sides by 3]
Now that we have f and k, we know that C is the correct answer.
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