Answer:
$39600
Step-by-step explanation:
One year is made up of 12 months.
in oder for us to know how many months make up 3 years,we multiply 12 months by 3years and the answer is 36 months.
36months = 3years
we workout
$1,100×36 months =$39,600
This shows that, by three years David would have paid his ex-wife $39,600