Respuesta :

Answer:

B

Step-by-step explanation:

Since XQM and LQR are vertical angles, they are congruent. Solving for a:

[tex] - 4a + 139 = 4a + 123[/tex]

[tex]8a = 16[/tex]

[tex]a = 2[/tex]

Substitute 2 for a in 4a + 123:

[tex]4(2) + 123 = 8 + 123 = 131[/tex]

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