The perimeter is the total of adding all of the side lengths together.
A square has 4 equal side lengths.
So the perimeter of a square is:
P = s + s + s + s  or  P = 4s
[P = perimeter       s = side lengths of the square]
Since you know the side length of the square is (x + 2 1/4), you can replace s with (x + 2 1/4)
P = 4s
P = 4(x + 2 1/4)  Multiply 4 into (x + 2 1/4)
P = 4x + 8 4/4
P = 4x + 9
Since you know the perimeter, you can plug it in.(you could have also plugged it in in the beginning)
P = 4x + 9
14 = 4x + 9  Subtract 9 on both sides
5 = 4x  Divide 4 on both sides
5/4 = x
Now that you know x, find the side length of the square.
(x + 2 1/4)
(5/4 + 2 1/4)
2 6/4 = 3 2/4 = 3 1/2 units or 3.5 units
To find the area of a square, you multiply 2 of the sides together:
A = s · s   
A = 3.5 · 3.5
A = 12.25 units²
 
        
             
        
        
        
        
2/5 = 0.4
2.4 x 100 = 240%
        
             
        
        
        
The distance between two cities is 
75
 
k
m
s
.
Explanation:
As a road of 
4
 
c
m
.
 on road map indicates a road of length equal to 
30
 
k
m
.
Each 
c
m
.
 on map indicates 
30
4
=
7.5
 
k
m
s
.
Hence a distance of 
10
 
c
m
.
 between two cities on the map indicates
7.5
×
10
=
75
 
k
m
s
 
        
             
        
        
        
Answer:
3
Step-by-step explanation:
-2+1= -1 
4-3=1 
-3/1= -3