Answer:
140
Step-by-step explanation:
20+4(s)=
20+4(30)=
20+ 120=
140
 
        
             
        
        
        
Answer:
m = -2
Step-by-step explanation:
First, let's move all variables to one side of the equation. (Don't forget to change the signs when you move the numbers to the other side.)
18m + 7m = -60 + 2 + 8 
Now we simplify to get this:
25m = -50
Now we divide -50 by 25 which gets us -2.
Therefore, m = -2
Hope this helps!
 
        
             
        
        
        
I have attached an image explaining how to solve this problem.
(“m” means slope)
 
 
        
        
        
Translate words into numbers.
13/(1 3/7)
First convert to improper fraction.
13/(10/7)
Then, note that division is the same as multiplying by the divisor's reciprocal.
13x7/10=9.1
answer: $9.10 per kilogram