In 2 years theirs 17520 in total!
        
                    
             
        
        
        
Given:
Lamont cotton is 4% commission on the first 10,000 of monthly sales and 10% on all sales over 10,000. 
Consider his last month sales is 38,000.
To find:
The total commission.
Solution:
4% commission on the first 10,000 of monthly sales is

Sales over 10,000 is 

10% commission on all sales over 10,000 is

Now, the total commission is

Therefore, the total commission is 3,200.
 
        
             
        
        
        
The miles he drove North on Avenue B is 24 miles. 
<h3>What is Pythagoras theorem? </h3>
According to the Pythagoras theorem, the square of the hypotenuse is the sum of the square of the opposite sides. 
The Pythagoras theorem: a² + b² = c²
Where: 
- a = length
- b = base = 7 miles
- c = hypotenuse = 25 miles
<h3>How many miles did he drive north of Avenue B? </h3>
25² - 7² 
625 - 49 = 576
√576 = 24 miles
Please find attached the required diagram. To learn more about Pythagoras theorem, please check: brainly.com/question/14580675
 
        
             
        
        
        
777 when rounded, or 777.1215418091389