Answer:
w=-4/3, 7/2
Step-by-step explanation:
 
        
                    
             
        
        
        
So what you do is (2/3)x-9=7. Add 9 to both sides (2/3)x=16. Multiply by reciprocal on both sides 16 x (3/2). 16 x 3 = 48. 48/2=24
        
                    
             
        
        
        
Answer:
45
Step-by-step explanation:
c^2*b 
We know that c is 3, and b is 5, so we can substitute them in 
3^2*5 
Solve the exponent first 
9*5
Multiply 
45 
 
        
                    
             
        
        
        
Ok. First you have to find the unit rate. Since you can buy 9 packages of grapes for $24, then you can get 1 grape package for $2.6667. If you have $8, you can buy 3 packages of grapes.