Hannah is 1 year old today.
Step-by-step explanation:
Let,
Hannah = x
Biff = y
According to given statement;
y = x+25 Eqn 1
In four years;
y+4 = 6(x+4) Eqn 2
Putting value of y from Eqn 1 in Eqn 2;

Dividing both sides by 5

As x is age of Hannah, therefore,
Hannah is 1 year old today.
Keywords: linear equations, substitution method
Learn more about linear equations at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
Mabye 7?
Answer:
1. Where are you from
2.why did you want to get this job/position
3.How are your language skills
Step-by-step explanation: