Answer:
Option (c) ""
Step-by-step explanation:
The given equation is :
q = c4(h + r)
We need to solve it for r.
Dividing both sides of the given equation by 4c.
Now, subtract h both sides of the equation.
Hence, this is the required solution.
Let her brother's age be x
Sarah is 2x + 4
1+1=a a=solution
Answer: 7
HOPE THIS HELPS