Answer:
the answer is 
yes to 7 and no to 10
Step-by-step explanation:
7. y = 3x--------->   2*3 = 6
10. y = 7x+2--------------> 2*7=14--> 14+2 = 16
16 does not equal 0
 
        
             
        
        
        
Answer:
6 is the correct answer
Step-by-step explanation:
4*2=8
3*2=6
x=6 
 
        
             
        
        
        
Answer:
1  3/40
Step-by-step explanation:
1  1/4 +1 1/5 +7/8= 3  13/40
3/4  .3= 2 1/4
3 13/40 -  2 1/4
 
        
             
        
        
        
54.67 but if rounded it will be 54.7