Answer:6*(21/3)=42 
Step-by-step explanation:
 
        
             
        
        
        
The answer is (-8z)^2= 16z^2
        
             
        
        
        
He wil eat a total of 55.2 hot  dogs. there 60 seconds in a minute . he plans to eat 1 hotdog in every  13 seconds . you divide 60 by 13 . he will eat 4.6 hot dogs in  a minute . then you multiply 4.6 by 12.
        
             
        
        
        
The y-intercept appears to be at y=-1. The line appears to also go through grid point (3, 1), which is 2 units up and 3 units over. The slope is 2/3.
In slope-intercept form the equation of the line is
   y = (2/3)x - 1
        
             
        
        
        
Answer:
A
Step-by-step explanation:
Because a^2+b^2=c^2 in a right triangle by Pythagorean's Theorem.  So, the only one that works is 3^2+4^2=5^2 because 9+16=25.