Answer:
4n + 6 = 18
4n + 6 = 18 -----------> b
hopes this helps
15
Step-by-step explanation:
She is currently 15. 45 years from now she will be 60. 60 is 4 times her current age. So right now, she is 15
We need to integrate
It has a zero in between-3 and -2
Answer: The last one