

1. 
Express .00034 as a percent. 


A. 
0.034% 
B. 
3.4% 


C. 
0.34% 
D. 
0.0034% 


Hint 


2. 
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. 
0.934% 
B. 
0.1868% 


C. 
0.467% 
D. 
0.2335% 


Hint 


3. 
The number of U.S. households with cable television increased 219% between 1981 and 2001. Write 219% as a decimal. 


A. 
21.9 
B. 
0.219 


C. 
2.19 
D. 
21,900 


Hint 


4. 
Find 7.25 written as a percent. 


A. 
72.5% 
B. 
7.25% 


C. 
7,250% 
D. 
725% 


Hint 


5. 
Find 0.061 written as a percent. 


A. 
0.00061% 
B. 
0.61% 


C. 
6.1% 
D. 
61% 


Hint 


