Total number of puppies = 12
Where;
Poodles = 3
Terriers = 5
Retrievers = 4
After Rebecca selects a poodle, total number of puppies remaining = 12 -1 =11
Then,
Probability of Aaron selecting a retriever:
P(R) = Number of  retrievers/New total = 4/11
        
             
        
        
        
Answer:
Step-by-step explanation:
1. 520/13=40
140/7=20
40*20=80
2. 300*150=45000
    45000*6=270000
3. 230-70*2=90
    90/2=45 (width)
    70*45=3150(area)
   
 
        
             
        
        
        
Each teacher would get 142 pencils with 6 pencils left over
        
             
        
        
        
Answer:
3
Step-by-step explanation:
There's only 3 prizes thus meaning only 3 people can be awarded
 
        
             
        
        
        
Answer:
Darlene bought more fabric
Darlene bought 3.4 yards more
Step-by-step explanation:
Darlene = 7 yards + 20% extra
= 7 yards + (20% of 7 yards)
= 7 + (20% × 7)
= 7 + (0.2 × 7)
= 7 + 1.4
= 8.4 yards
Chris = 4 yards + 25% of 4 yards
= 4 yards + (25% of 4 yards)
= 4 + (25% × 4)
= 4 + (0.25 × 4)
= 4 + 1
= 5 yards
Darlene bought more fabric
How much more?
Darlene - Chris
= 8.4 yards - 5 yards
= 3.4 yards
Darlene bought 3.4 yards more