Answer:

Step-by-step explanation:
Given: Dimensions of a big locker are 0.5 m × 0.6 m × 1.2 m
Dimensions of a small locker are 0.5 m × 0.6 m ×  (as height of small locker is half the height of big locker )
 (as height of small locker is half the height of big locker )
To find: total volume of one big locker and one small locker
Solution:
Volume of cuboid = length × breadth × height
Total volume of one big locker and one small locker = Total volume of one big locker + total volume of one small locker
= 

 
        
                    
             
        
        
        
7.1 is ten times smaller than 71
        
                    
             
        
        
        
Answer:
length of each side : 10 cm
Step-by-step explanation:
all sides of squares are equal 
thus, 4 sides = 40 cm
1 side = 40/10 cm
1 side = 10 cm
 
        
                    
             
        
        
        
Answer:
is number 2
Step-by-step explanation:
 
        
             
        
        
        
(a) If 

 is the mass (in mg) remaining after 

 years, then 


(b) 

(c) 
