Since their were no numbers to the questions i had to write it by the problem
Circle with 9 feet question
C=2(pi)r or C=(pi)d
Circular table question
A=(pi)r^2
Interest question
I=Prt
Volume of a rectangular prism
V=Bh
Triangular pyramid
V=1/3Bh
 
        
             
        
        
        
Sólo debemos dividir los numeros:

Entonces, A cada persona le tocan 6 dulces.
Espero que te sirva, salu2!!!!
 
        
                    
             
        
        
        
A. and b. 40+21=61 coins has shaya
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(3,0) and (0,-9)
Explanation: type the equation in a graphing calculator and the answer is the points where the line crosses the x and y axis
 
        
        
        
Equilateral triangle. because all sides are equal.