Answer:
$313
Explanation:
In order to divide the insurance bill between the seller and the buyer, we must first determine the insurance cost per month. We first divide the total premium by 12 months = $578 / 12 = $48.17 per month.
The seller is responsible for paying insurance during June, July, August, September and half of October (15 days). So the seller's share of the bill = 5.5 months x $48.17 = $264.92 ≈ $265
So the buyer owes the seller the difference between the total premium paid and $265 = $578 - $265 = $313
