Answer:
$4,717,440
Step-by-step explanation:
The dealer's total revenue from the sale of all 390 cars will be ...
$4,893,500 +1,042,300 = $5,935,800
His cost for those 390 cars is apparently ...
390 × $3,124 = $1,218,360
His income from the sale of the cars will be the difference between his revenue and his cost:
$5,935,800 -1,218,360 = $4,717,440