1) what number is represented? a) 16 b) 15 c) 19 d) 11 2) what number is represented? a) 20 b) 10 c) 12 d) 13 3) what number is represented? a) 71 b) 18 c) 14 d) 17 4) what number is represented? a) 20 b) 12 c) 10 d) 18 5) what number is represented? a) 9 b) 11 c) 16 d) 17

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