There will be 18 sheep and 15 ducks. 
18+15=33
18 sheep x 4 legs per sheep =72 legs 
15 ducks x 2 legs per duck = 30 legs 
72+30= 102 legs in all
        
             
        
        
        
One rope = 34m
12 ropes = 34 x 12 = 408m
Total cost = $3.50 x 408 = $1428
        
             
        
        
        
Answer:
x=2
Step-by-step explanation:
101-13.7x=73.6
13.7x=101-73.6
13.7x=27.4
x=27.4/13.7
x=2
 
        
                    
             
        
        
        
7 .is 9 to the power of 8,number 8 is 5,number 9 is 5m^2n