Solve the following inequality. Write the solution set using interval notation. 0.9x + 0.8x 8.5
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Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution set is
(Type your answer in interval notation. Use integers or fractions for any numbers in the expression.)
OB. The solution set is Ø.
(Answer quickly)

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