Answer:16 coins and x+y 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
21
(2,14)
14/2=7
14+7=21
21 is final answer 
Erika had a 95% chance of guessing wrong
20 can be seen as 100%
the % will go down by 5's because of the original number
.5*20=
This will give you a 95% success rate.
 
        
             
        
        
        
Answer: The
Step-by-step explanation: First we look at our right angles of the shape, Next you analyze your formula and use it to form your answer(formula: Base X Height).Then for the final step you would multiply 9x5=45.We wouldn't be doing all of them because that would be doing Total Area.
 
        
                    
             
        
        
        
61.26 in^2
Explanation: plug in the formula to get SA=2π1.5^2+2π(1.5)(5)
        
             
        
        
        
Answer:
Function 1 
Step-by-step explanation: