The answer would be 60
 The first think you would need to do would simply 144. Which would be 12. 
Then you are going to want to multiply-5 by 12. 
Which would be 60. 
With 12 as a positive number, being greater or to than 60 then will become a positive.
        
             
        
        
        
4/5 ,8/10, 16/20, 
You multiply both numbers with the same number.
For ex. 4×2=8 5×2=10 so we have 8/10
        
             
        
        
        
Answer: 
(hopefully) 2,600
Explanation:
5350 mm = 535 cm
= 535 x 5( 5 ropes) = 2675 cm
= 15 cm × 5 ( five knots for 5 ropes) = 75cm
= 2675- 75 = 2600.
hopefully im right...
 
        
                    
             
        
        
        
Answer:
-6.3
Step-by-step explanation:
7/10 X -9/1 = -63/10 = -6.3