单项选择题

A school group charters three identical buses and occupies of the seats. After of the passengers leave, the remaining passengers use only two of the buses.（）

A. if Quantity A is greater;
B. if Quantity B is greater;
C. if the two quantities are equal;
D. if you cannot determine the relationship based on the given information.

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单项选择题

George earned 80, 85 and 90 on the first three tests in his geography class. Because he didn’t have time to study, he decides to guess randomly on the final test. That test has ten true-false questions, each worth 10 points. What is the probability his final average is more than 85（）

A.A
B.B
C.C
D.D
E.E

填空题

Martina needs 35 gallons of fuel in each winter month to heat her home. Each spring and fall month she uses 15 gallons of fuel. She uses no fuel during the summer. What part of her annual heating bill is spent during the winter Give your answer as a fraction :（）