Answer:
6 years 
Step-by-step explanation:
1.75% of 1,200 = 21
 so 1 year= 21 
 21+21= 42         2 years
42+21=63           3 years
63+21=84            4 years
81+21=105             5 years
105+21=126            6 years 
 Or you can do 
21x6=126 so it has to equal 6 years
 
        
             
        
        
        
A. The discount is 7.80 much 
B. $11.7
        
             
        
        
        
Answer:
8
Step-by-step explanation:
140-122=18
18-10=8