Answer:
20%
Step-by-step explanation:2.8-3.5 then divide that by 3.5 and multiple the answer by 100 to get the percent 
 
        
                    
             
        
        
        
Answer:
20/ 11 and if u want it in decimal it's 1.818182
 
        
                    
             
        
        
        
Answer:
m= 4.5 miles
Step-by-step explanation:
Let the number of miles Evelyn can run be m and can be modeled by the equation below
m= kx
Where x Is the Minutes
When m= 3
x= 40
3= k40
k= 3/40
If x= 60
m=3/40(60)
m = (60*3)/40
m= 180/40
m= 4.5 miles
 
        
             
        
        
        
Given:
The expression is:

To find:
Part A: The expression using parentheses so that the expression equals 23.
Part B: The expression using parentheses so that the expression equals 3.
Solution:
Part A:
In option A,

 [Using BODMAS]
                       [Using BODMAS]

In option B,

 [Using BODMAS]
                      [Using BODMAS]

In option C,


In option D,

 [Using BODMAS]
                     [Using BODMAS]

After the calculation, we have  and
 and  .
.
Therefore, the correct options are B and D.
Part B: From part A, it is clear that

Therefore, the correct option is C.