5. At a certain
diner, a hamburger and coleslaw cost $3.59, and a hamburger and french fries
cost $4.40. If french fries cost twice as much as coleslaw, how much do french
fries cost?
(A) $0.30
(B) $0.45
(C) $0.60
(D) $0.75
(E) $0.90
the answer is E, 但是算出的答案不在这5个选项中。
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