Answer:
$42,000 ( rounded to nearest thousand )
Step-by-step explanation:
The average weekly sales for his territory =$20,400
Number of weeks in a year = 365/7≈52
Hence total sales in a year = 52 x $20,400
= $10,60,800
The rate of commission = 4%
Hence commission earned on sales for the full year = 4% of $10,60,800
= 0.04 x $10,60,800
= $42,432
Hence Isadore earns an commission of $42,000 ( rounded to nearest thousand ) per year
