Answer:
The initial tax revenue that the government obtained from the couple was:
$125,000 x 32% = $40,000
With the new tax rate, the federal government will obtain:
$125,000 x 40% = $50,000
So, next year, the additional tax revenue will be $10,000
Now, if the Jeradls work harder and earn $140,000, the federal government would get:
$140,000 x 40% = $56,000
So in this case, the additional tax revenue would be $16,000 when compared to previous years.