Answer:
Parallel lines are straight lines that don't ever touch. Think of a railroad track.
Perpendicular lines are lines that meet and make a 90 degree angle
 
        
             
        
        
        
Answer:
A. -68
B. 37
C. -61
D. 171
Step-by-step explanation:
Rule for A, B, D: 2 negatives is the same as addition 
(how I did C: add them together then add the negative) 
 
        
             
        
        
        
The ratio of the trout with tags that are caught and the total trout with tags is first calculated.
     r = 12 trout / 180 trout = 1/15
Then, we divide the number of trouts caught without tag by the value obtained above.
     N = (48 - 12) / (1/15) = 540
Then, we add the number obtained above and 180.
     T = 540 + 180 = 720
ANSWER: 720
        
             
        
        
        
Answer:
1 over x 2
Step-by-step explanation:
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Keeping in mind that there are 5280 ft in 1 mile, and there are 60 minutes in 1 hr and 60 seconds in 1 minute, therefore 60*60 seconds in 1 hr, or 3600 seconds, then.
