First question:b 
Second question:c
        
             
        
        
        
A group of mathematical symbols that express a relationship or that are used to solve a problem is a FORMULA
        
             
        
        
        
Answer:
The area is 16.62
Step-by-step explanation:
The expression you use is pi x r squared. which is 3.14 x 2.3 x 2
 
        
                    
             
        
        
        
As the ratio of your shadow to your height is 2:1 assuming the flagpole would form a similar triangle the shadow is twice the height of the pole meaning the pole is 14 feet tall
        
                    
             
        
        
        
Answer:
2205
Step-by-step explanation: