6,4 would be the write answer.
        
             
        
        
        
Answer:
0.41 cm
Step-by-step explanation:
The scale on the map is 1 in 86 mi. 
This means that, 1 cm on the map represents 86 miles in real life, or on earth. 
Then we're told that in real life, a distance is 35 miles, and how far they are on the map. 
If 1 cm equals 86 miles, then we can say that x cm equals 35 miles
1 cm ----> 86
x cm ----> 35
x * 86 = 35 * 1
x = 35 / 86
x = 0.41 cm
Therefore, they must be 0.41 cm farther or closer apart on the map scale. 
 
        
             
        
        
        
-13-56/14+9=
-69/23=-3
-48+36/12=
-12/12=-1
        
                    
             
        
        
        
Answer:
$141,557.76
Step-by-step explanation:
Chao bought a boat for 160,000
The value of the boat reduces by 4% every year
Therefore the value of the most at the end of three years can be calculated as follows
= 100%- 4%
= 96%
= 160,000 × 96/100^3
= 160,000 × 0.96^3
= 160,000 × 0.884736
= 141,557.76
Hence the price of the boat after 3 years is 141,557.76