Answer:
12 years old.
Step-by-step explanation:
1) 2x+x=18
2) Now solve 2x+x=18
Add alike terms
3x=18
Now divide both sides by 3 (3x/3 and 18/3)
x=6
So Hannah is 6 years old. Her sister must be 12.
Answer: 0
Step-by-step explanation: ur welcome ;)
i think the answer is -50 but im
not sure
20% of 160 is 32
