Answer:
r = 1
Step-by-step explanation:
Solve for  r
 by simplifying both sides of the equation, then isolating the variable.
 
        
                    
             
        
        
        
Answer:
The answer is A.
Step-by-step explanation:
A polyhedron is a three-dimensional solid made up of polygons. It has flat faces, straight edges, and vertices. For example, a cube, prism, or pyramid are polyhedrons.
 
        
             
        
        
        
In grade 7, 10/18 students are members of the band.
In grade 8, 10/12 students are members of the band.
Because 10/12>10/18, the answer is B