1.   In the expression 18 is 20% of 90, 18 is the ____.
    A. rate B. percent proportion
    C. base D. percentage
    Hint

  2.   58 is 29% of what number?
    A. 232 B. 50
    C. 200 D. 168.2
    Hint

  3.   In the expression 18 is 20% of 90, 90 is the _____.
    A. base B. percent proportion
    C. percentage D. rate
    Hint

  4.   72 is what percent of 90?
    A. 40% B. 80%
    C. 5% D. 20%
    Hint

  5.   378 is 84% of what number?
    A. 462 B. 438.48
    C. 317.52 D. 450
    Hint



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