The Length of FD = 26 cm
According to the given information
FE = FC = 12cm
As FE, FC both are radius of circle
The tangent segments to a circle from a external point are equal
Hence
CD = ED 
13x - 16 = 4x + 11
13x - 4x = 11 + 16
9x = 27
x = 27/9
x = 3
CD = 13x - 16 
      = 13 × 3 - 16 
      = 23 cm
ED = 4x + 11
      = 4 × 3 + 11
      = 23 cm
In Triangle FED
FE is perpendicular to ED
According to Pythagoras Theorem

        = 
        = 673
FD = 26 cm approx.
The Length of FD = 26 cm
To know more about Pythagoras Theorem
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We have been given that Jackson purchases a new car for $48,000. The car's value can be modeled by the  following exponential function:  where y represents the car's  value and t represents time in years. We are asked to find the decay rate as a percentage.
 where y represents the car's  value and t represents time in years. We are asked to find the decay rate as a percentage.
We know that an exponential decay function is in form  , where,
, where,
y = Final value,
a = Initial value,
r = Decay rate in decimal form,
x = time.
Upon comparing our given function  with standard decay function
 with standard decay function   , we can see that
, we can see that  .
.
Let us solve for r.



Let us convert 0.24 into percentage.

Therefore, the decay rate is 24%.
 
        
             
        
        
        
We can set Maggie's age to x 
If her brother is six years younger than four times her age, than her brother must be equal to: 4x-6 
Since the sum of their ages is 39, we can set up an equation. 
(Sum of Maggie's age) + (sum of Maggie's brother's age) = 39 
x + (4x -6) = 39 
5x -6 = 39 
5x = 45
x = 9 , Maggie's age is 9 
 
        
             
        
        
        
If he hands out pencils will be 45/80 =
If he hands out markers will be 35/80