Answer:
shop b 
Step-by-step explanation:
We can find for example how much 100 grams of peanut butter cost in each shop using a proportion 
shop A 100 : 250 = x : 325 
x = (325 * 100) / 250 = $130 
shop B  100 : 340 = x : 408 
x = (408 * 100)/ 340 = $120
We discovered that shop B is cheaper 
 
        
             
        
        
        
The 8oz because double that is 16oz and the price doubled is 2.72
        
             
        
        
        
Answer:
A) 45
Step-by-step explanation:
P(green) = 6/20
6/20 = x/150
20x = 900
x = 45