Answer:
wdym???
Step-by-step explanation:
You have an email with  at white buffalos.net??? I thought that was only my school. 
 
        
             
        
        
        
To estimate, round 3102 to 3100
round 1-10 to 2500
1-70 to 2100 
1-80 to 2900
2900+2100+2500+3100=10600mi
Yes it is reasonable because you add and subtract numbers when estimating, however it is not exact
        
             
        
        
        
y = 0x - 6     has a slope of 0
If you graph several points for x where y = -6,  <em>(0, -6), (1, -6), (2, -6), etc  </em>you will see that it creates a horizontal line
Answer: B