Answer:
10. Supplementary
11. Congruent
12. Congruent.
13 . congruent
14 supplement
15 supplementary
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Answer:

Step-by-step explanation:
1) Expand by distributing terms.

2) Simplify 2 × -14 to -28.

3) Remove parentheses.

<em><u>Therefor</u></em><em><u>,</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>2x</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>28</u></em><em><u>.</u></em>
Answer:
22 cm long
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