Answer:
$4,500
Step-by-step explanation:
Let the Rocky’s expenses were 'x'
Therefore,
after deducting $500, amount left = x -500
Now,
The insurance paid 80% of the remaining amount i.e 80% of (x -500)
or
0.80 × (x - 500 ) = $16,000
or
x - 500 = $20,000
or
x = $20,500
Therefore,
The amount paid by Rocky = Rocky's expense - Amount paid by insurance
= $20,500 - $16,000
= $4,500