

1. 
Express 830% as a decimal. 


A. 
83.0 
B. 
8.3 


C. 
0.83 
D. 
0.083 


Hint 


2. 
Express 0.07% as a decimal. 


A. 
0.7 
B. 
7.0 


C. 
0.007 
D. 
0.0007 


Hint 


3. 
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. 
0.467% 


C. 
0.2335% 
D. 
0.1868% 


Hint 


4. 
Find 7.25 written as a percent. 


A. 
725% 
B. 
7.25% 


C. 
7,250% 
D. 
72.5% 


Hint 


5. 
Find 0.008 written as a percent. 


A. 
8% 
B. 
0.08% 


C. 
0.8% 
D. 
80% 


Hint 


