<h2>
Greetings!</h2>
Answer:
If Leo is 6 and Max is 12 years older, Max is 18.
This means that max is already three years older than Leo:
6 * 3 = 18 , which is Max's age.
<h2>Hope this helps!</h2>

Step-by-step explanation:

Let 
Then 
or

This gives us
or all integer multiples of 
Hey!
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a. Has a vertical axis of symmetry.
Answers: B and D
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b. Has a horizontal axis of symmetry.
Answers: D and E
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c. Passes through exactly one quadrant.
Answers: A and D
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d. Passes through all 4 quadrants.
Answers: B and F
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Hope This Helped! Good Luck!