Answer:
28.75 years
Step-by-step explanation:
 
        
                    
             
        
        
        
It is impossible because it's base is not circular. A solid of revolution is <span>obtained by rotating a </span>plane curve<span> around some </span>straight line, that is, <span>the </span>axis of revolution that lies on the same plane. The closest to a square pyramid applying this concept is by rotating a right triangle around the opposite or adjacent side (the axis), but the shape that you get is a straight circular cone. 
        
             
        
        
        
As the exterior angles always add up to 360, you can find the number of sides by dividing 360 by the measure of your exterior angle, 30. This gives you 360/30=12, meaning your polygon has 12 sides.
        
             
        
        
        
Answer:
idk what this is 4
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1/10
Step-by-step explanation:
P(a successful member
had Bertha as her trainer)  = P(Bertha being you trainer) x P(being successful if
                                                 trained by Bertha)
                                              = 1/3 x 30/100
                                              = 30/300
                                              = 1/10