Well. add all of these up 8+5+5. we know 5+5 is 10. and 10+8 is 18. so 18 is the denominator.  There are 8 red markers and 5 blue markers at 8 and 5 up. 8+5 is 13 right? So the numerator will be 13.  but the probability of picking a blue then a red is 13 alone or if you are ask for out of the amount of markers there are, its 13/18. so the probability is 13 or 13/18.
 
        
             
        
        
        
Use Pythagorean theorem 
a^2 + b^2 = c^2
Plug in the info
b = 53, a = 41
41^2 + 53^2 = c^2
1681 + 2809 = c^2
c^2 = 4490
Squareroot of 4490 = 67.007
Perimeter = adding all sides
53m + 41m + 67.01m = 161.01 m
Solution: 161.01 meters
        
             
        
        
        
I believe the answer to this equation would be the answer 10. Work shown below.
Quotient = division
50 / 10 = 5
Minus = subtraction
15 - 5 = 10
Hope this helped you
 
        
             
        
        
        
Answer:
4 horses 
Step-by-step explanation: