8.5b.
7a= 5a +3b
-5a -5a
2a = 3b
 /2
a= 1.5b
Solve by substitution and you get;
8.5b=8.5b
Because of the lack of constants in the equation there isn't a definite answer.
        
                    
             
        
        
        
You mean find the elephant's weight on Pluto?
100:3 & 4100:x
4100/100 = 41
3*41 = 123
The ratio would become 4100:123 with the elephant's weight on Pluto as 123 pounds.
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Ok First you need to find out how many favorite type of music and favorite school subject. 
Now then, when you find out what they are look for the answer. 
If i didn't help you i'm so sorry. 
                                       Good luck!
 
        
             
        
        
        
Given:
The total cost of the order is

where, T is the total cost, b is the number of bath towels, and w is the number of wash cloths.
Her budget is $85.
To find:
The constraints, so that she can order a maximum of washcloths or bath towels.
Solution:
We have, 

Her budget is $85. So, total cost is less than or equal to 85.
       ...(i)
For maximum number of bath towels, the number of wash cloths is 0.

 
Divide both sides by 6.
 
 
For maximum number of wash cloths, the number of bath towels is 0.


Divide both sides by 2.


Therefore, the required constraints for maximum of washcloths or bath towels are 
 and 
 respectively.