Answer:
35cm
Step-by-step explanation:
Given data
Length= 21cm
Width= 28cm
Diagonal= ???
Applying Pythagoras theorem
D^2= L^2+W^2
D^2= 21^2+28^2
D^2= 441+784
D^2= 1225
D= √1225
D= 35cm
Hence the diagonal is 35cm
 
        
             
        
        
        
0.93%. All you have to do is move the decimal point two steps to the right 
        
             
        
        
        
The numbers aren't accurate, they dont add up
        
             
        
        
        
Answer:
$28.50
Step-by-step explanation:
It declined $7.50 in 3 days then increased $4 in 2 days
 
        
             
        
        
        
7/10. Because 0.7 equals 70% . As a fraction it would be 70/100. Simplify, and you get 7/10.