1) If B is between A and C, AB=10 and AC=28, what is the value of BC?

9

18

19

38

2) If B is between A and C, AB=6x, BC=8x and AC=42, what is the value of x?

3

14

18

24

3) If B is between A and C, AB=2x-1, BC=3x+5 and AC=24, what is the value of AB?

4

7

12

17

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