7. For how many of the countries shown was the savings rate more than5 times the real GNP growth rate?
A. Five B. Four C.Three D.Two E.One
8.Column A：10/(0.9)*(0.9)
Column B：100/9
A. The quantity in Column A is greater. B. Thequantity in Column B is greater.
C. The two quantities are equal. D. Therelationship cannot be determined from the information given.
9.If the average (arithmetic mean) of x， y， z， 5， and 7 is 8， which of the following must be true?
(1).The median of the five numbers cannot be 5.
(2).At least one of x， y， and z is greater than
(3).The range of the five numbers is 2 or more.
A.(1)only B.(2)only C.(3)only D.(1)and(3) E.(2)and(3)
