Answer:
$4,500
Explanation:
In order to solve this you just have to multiply the amount of persons by the fee per person that they would incur by having the 20 people living there:
So there are 20 people and each will cost $200:
$200*20=$4000
And you add $500 of the fixed costs:
$4000+$500=$4500
So the total cost would be $4,500.