Answer:
480 cards
Explanation:
Step 1: No. of cards Jackson is selling
=> 1000 x 60%
=> 1000 x 0.6
=> 600 cards
Step 2: No. of cards Michael buys
=> 600 x 80%
=> 600 x 0.8
=> 480 cards
Michael buys 800 hockey cards from jackson
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