

1. 
Express 830% as a decimal. 


A. 
0.83 
B. 
0.083 


C. 
83.0 
D. 
8.3 


Hint 


2. 
Which of the following is not reasonable? 


A. 
The weight of a mouse is 0.60% the weight of a lion. 


B. 
Last year's sales were 108% of this year's sales. 


C. 
The number of household microwaves today are 0.95% of the microwaves in 1980. 


D. 
The cost of gasoline is 120% of last year's cost. 


Hint 


3. 
Express 0.49% as a decimal. 


A. 
0.049 
B. 
0.49 


C. 
0.00049 
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. 
0.2335% 
B. 
0.467% 


C. 
0.934% 
D. 
0.1868% 


Hint 


5. 
Find 0.061 written as a percent. 


A. 
0.00061% 
B. 
61% 


C. 
0.61% 
D. 
6.1% 


Hint 


