Answer:
b is correct for Maria but c is correct for the boy
 
        
             
        
        
        
find the perimeter of a triangle with sides 15 inches, 15 inches, and 21 inches length
To find the perimeter of a triangle we add all the sides of the triangle
The length of the sides of the triangle are given as 15 inches, 15 inches, and 21 inches
Perimeter of a triangle = 
15 inches + 15 inches +   21 inches = 51 inches
So 51 inches is the perimeter
 
        
             
        
        
        
Answer: 1.5miles/hour
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Zeroes are: (-6, 0) and (2.5, 0)
x= -6  &  x= 2.5
Step-by-step explanation:
I recommend using desmos for graphing problems!