Answer:
The cost price was increased by 33.33 % to provide this profit
Explanation:
Given:
Cost price =  $3
Selling price  = $4
Gross profit  = $1
To Find:
Profit percentage =?
Solution:
Profit Formula calculates the net gains or losses incurred by subtracting total expenses from total sales. 
Now profit  = 4 - 3 = 1
Now the profit percentage can be found by
=
=
=
=  33.33%
 
        
             
        
        
        
Answer:
Secure attached babies
Explanation:
In Ainsworth studies, babies who develop a secure attachment to their mother and become upset when she returns, and seeks contact when she comes back. 
 
        
                    
             
        
        
        
Answer: Relative Size
Explanation:
Relative Size is a very important monocular cue for depth perception. It works in tandem with the principle of size consistency which posits that closer objects project a larger image on the retina than further objects. 
So essentially closer objects are larger than further objects for depth perception. 
This is why near objects in Tom's photographs appear much larger than those on the opposite shore of the cove.