Answer:
$4,000
Step-by-step explanation:
For computation of the government's total support payments to producers first we need to find out the surplus units which is shown below:
Floor price = $40

=

= 280 - 180
= 100
Therefore,
The Total support payments to producer = Price floor × Surplus units
= $40 × 100
= $4,000
So, for determining the total support payment to producer we simply multiply the price floor with surplus units.