Question

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BC is parallel to DE.
42
А
What is AB?
Enter your answer in the box.
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Answer 1

Answer: x=34

Step-by-step explanation: took the test and payed attention in class

Answer 2

34

Explanation:

42/21 = x/17

solve to get the answer

2 = x/17

2*17 = x/17 * 17

34 = x