Answer:
8r.
Step-by-step explanation:
If we substitute 3 into all of these equations, we get
8(3) which equals 24 
6(3) which equals 18
9(3) which equals 27
7(3) which equals 21
8r is the one that equals 24 when 3 is substituted.
 
        
             
        
        
        
Answer:
14.10>3.05
Step-by-step explanation:
 
        
             
        
        
        
Just solve until the answers are the same
25 times x plus 30 for John 
15 times x plus 50 for Mary
        
             
        
        
        
Answer:
1. 72
2. 60
3. 35
4. 32
Step-by-step explanation:
1. 6 x 4 x 3= 72
2. 5 x 3 x 4= 60
3. 5 x 2 x 2= 20
5 x 3 x 1= 15
20 + 15= 35
4. 5 x 3= 15 
2 x 2=4
4 x 8= 32
 
        
             
        
        
        
Zeroooo solutions bc i did it earlier