X - the amount of money collected by Aiden
y - the amount of money collected by Jacob
Aiden and Jacob collected money in the ratio of 3.5 : 6.8.

Jacob collected $115.50 more than Aiden.

The total amount of money they collected is 
$360.50.
 
        
        
        
Answer:
Step-by-step explanation:
Positive: -1/-3, -2/-2, +2/+3, -1/+3
the rest of them are negative 
 
        
             
        
        
        
Answer:
1280
Step-by-step explanation:
I think it is 1280 because 20*16*8/2=1280. I am not 100% sure.
 
        
             
        
        
        
Answer:
B. 11i-4j+2k
Step-by-step explanation: