Answer:
The extra monthly charge for the family would be $14.50
Step-by-step explanation:
let x equal the additional monthly charge for legal services
[tex]10 + (25 + x)12 = 484 \\ 10 + 300 + 12x = 484 \\ 310 + 12x = 484 \\ 12x = 174 \\ x = 14.50[/tex]