Answer:
10.5 miles
Step-by-step explanation:
Ethan's favorite kind of exercise is running. He runs on a path that is 1.75 miles long. Last week, Ethan ran on the path 6 times. 
The number of miles that Ethan ran on the path last week is calculated as:
Number of miles × Number of times he ran
= 1.75 miles × 6 times
= 10.5 miles
Therefore, the number of miles that Ethan ran on the path last week is 10.5 miles
 
        
             
        
        
        
As shown in the figures given :
For Figure 1 : perimeter = 8 units   [As can be seen in the figure]
For figure 2(with 2 octagons) : perimeter = 8 × 2 - 1 = 15 units    [since 1 side is common ]
For figure 2(with 3 octagons) : perimeter = 8 × 3 - 2 = 22 units  [since 2 sides is common ]
If one more octagon is added 
then perimeter = 8 × 4 - 3 = 29 units    [since 3 sides will be common ]
 
        
             
        
        
        
Answer:
(4,-2)
Step-by-step explanation:
 
        
                    
             
        
        
        
 Answer:
No solution
 Explanation:
-4+19-7f = -15-7
cancel terms on both sides ( add 7f on both sides)
Calculate the sum
-4+19= -15 
-4+19=15
15 = -15
The statement 15 = -15 is false so there is no solution :)