Answer:
384 cm
Step-by-step explanation:
Perimeter is the sum of all external sides. (do not mix this up with area. Perimeter is the easy one) :)
There are 4 external sides. 
Top = bottom = 132 cm
Left = Right = 60 cm
Add all 4 sides:
2(132) + 2(60) 
264 + 120 = 384 cm
 
        
             
        
        
        
Total cost of books was 15 + 10 or 25.  With the 50 % discount on the $10 book, the total is now $20. The total cost was reduced by (B) 20%.
 $5 off the $25 price is a 20% discount.
        
             
        
        
        
Answer:
a) 160 minutes per day
b) Find the graph attached 
c) on 10th week Maria would be walking  2560 minutes per day 
Step-by-step explanation:
Week 1 - 5 minutes per day 
Week 2 - 10 minutes per day
Week 3 - 20 minutes per day
Week 4 - 40 minutes per day
Week 5 - 80 minutes per day
Week 6 - 160 minutes per day
a) 160 minutes per day
b) Find the graph attached 
c) on 10th week Maria would be walking  2560 minutes per day 
 
        
             
        
        
        
Answer:
27.7% of third year girls study biology
 
        
             
        
        
        
Increase the price of the strawberries to keep the same profit