Answer: The answer is D
Step-by-step explanation: 12x means 12 times x, which means her age is 12 times her brother's age.
Answer:
(1, 5), (3, 19) (-1, -9)
Step-by-step explanation:
really need the choices
Answer:
slope: 
Step-by-step explanation:
Holy @$#% THAT LOOKS HARD! Sorry, I can't help I don't know that math yet.