Answer:
x=4 y=0
Step-by-step explanation:
You add the two equations together to get 3x=12. You derive x=4 and y=0 from that. 
 
        
             
        
        
        
Answer:30
Step-by-step explanation:
45-12=33 nearest tenth is 30
 
        
             
        
        
        
Answer:
1253 inches cubed 
Step-by-step explanation:
V=L*W*H,so 11*14*7=1078   and 7*5*5=175
175+1078=1253
Mark me brainliest if I helped:D
 
        
                    
             
        
        
        
After you've calculated a least common multiple, always check to be sure your answer can be divided evenly by both numbers. Find the LCM of these sets of numbers. Multiply each factor the greatest number of times it occurs in any of the numbers. 9 has two 3's, and 21 has one 7, so we multiply 3 two times, and 7 once.
 
        
             
        
        
        
1613 divided by 213 
Answer: 8 loaves (if rounded)