4 hundreds 13 tens 5 ones = 4*100+13*10+5*1=400+130+5= \boxed {535}
        
                    
             
        
        
        
A+S=589
S=a-61
A+A-61=589
2a=589+61
2a=650
A=325
S=325-61
S=264
Hope this helps
        
             
        
        
        
Answer:
22
Step-by-step explanation:
-4(-5)+2
20+2
22
 
        
             
        
        
        
Keep in mind you would need a total of 120 ounces. 
A: Corn cereal comes in 12 oz boxes and the person used 5 boxes, thus taking 60 oz away from the total, leaving 60 oz. Next, you’d have to divide 60 oz by 4 (since that’s how many boxes of wheat cereal were used). Resulting in a wheat box being worth 15 ounces!!
B: 12c+ 15w= 120 (c= corn cereal, w= wheat cereal) 
C: 5 boxes of corn cereal with 4 boxes of wheat cereal; 0 boxes of corn cereal with 8 boxes of wheat cereal; 10 boxes of corn cereal with 0 boxes of wheat cereal.