1.   Express 830% as a decimal.
    A. 83.0 B. 0.83
    C. 8.3 D. 0.083
    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 cost of gasoline is 120% of last year's cost.
    D. The number of household microwaves today are 0.95% of the microwaves in 1980.
    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. 0.2335% B. 0.1868%
    C. 0.467% D. 0.934%
    Hint

  4.   The number of U.S. households with cable television increased 219% between 1981 and 2001. Write 219% as a decimal.
    A. 0.219 B. 2.19
    C. 21.9 D. 21,900
    Hint

  5.   Find 7.25 written as a percent.
    A. 7.25% B. 72.5%
    C. 725% D. 7,250%
    Hint



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