Answer:
simple intrest 
Step-by-step explanation:
because intrest 
 
        
                    
             
        
        
        
This is the graph of  1/x moved 4 units to the left 
so its f(x) = 1 / (x + 4)
C
        
                    
             
        
        
        
Answer:
Q is not the midpoint of PR
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
If Q is the midpoint of PR
then
PQ=QR
substitute the given values and solve for x

Remember that
 ----> given problem
 ----> given problem

substitute the value of x



Compare with the given value of PR

therefore
Q is not the midpoint of PR
 
        
             
        
        
        
Answer:
 36 units.
Step-by-step explanation:
we will use concept of basic proportionality theorem,
it states that , when a line is drawn parallel to one side of the triangle and intersect the other two sides then the two sides are divided in the same ratio.
Example:
In a triangle ABC
If  DE is  parallel to BC 
 D is a point on line AB and E is  point on AC, then
by basic proportionality theorem)
AD/DB = AE/EC 
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 in the problem  given one side has a parallel line drawn to it
Hence we can use basic proportionality theorem in it
20/30 = 24/?
2/3 = 24/?
=> ? = 24*3/2 = 36
Hence, missing segment value is 36 units.