Probability tree diagram question

Question description

In a computer store, 70% (0.7) of the computers in stock are laptops and 30% (0.3) are desktops. Five percent (0.05) of the laptops are on sale, while 10% (0.1) of the desktops are on sale. Use a tree diagram to determine what percentage of the computers in the store are on sale. (Round your answer to the nearest whole number.)

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