

1. 
Express 830% as a decimal. 


A. 
8.3 
B. 
83.0 


C. 
0.83 
D. 
0.083 


Hint 


2. 
Express 0.07% as a decimal. 


A. 
0.007 
B. 
0.0007 


C. 
7.0 
D. 
0.7 


Hint 


3. 
Express 0.49% as a decimal. 


A. 
0.049 
B. 
0.00049 


C. 
0.49 
D. 
0.0049 


Hint 


4. 
In a sample of air containing about 500 liters, 4.67 liters of the element Argon was found. What percentage of the air is Argon? 


A. 
0.467% 
B. 
0.934% 


C. 
0.1868% 
D. 
0.2335% 


Hint 


5. 
Find 0.061 written as a percent. 


A. 
0.61% 
B. 
0.00061% 


C. 
6.1% 
D. 
61% 


Hint 


