Answer:
Each poet reads for exactly 15 minutes.
Step-by-step explanation:
If it should run for 90 minutes, and there is 6 poets, therefore I'm pretty sure you divide 90 by 6, which is 15.
 
        
                    
             
        
        
        
Its true a. A linear system is a set of equations
        
                    
             
        
        
        
If the point is a y-intercept the x value would be zero. 8 is the slope, 7 is the y-intercept
y=mx+b
(0,7)