<h3>
Answer: 2x</h3>
Explanation:
Each person is x years old. Adding those unknown ages gets us x+x = 2x
We can think of it like x being one box, so x+x represents having two boxes which shortens to 2x.
A y-intercept always has to have an x-value of 0 so the answer is D (the last option)
Answer: B: CAB and GEF
Step-by-step explanation: