20 POINTS AND BRAINLIEST!
IT WILL TELL ME WHICH ONES ARE WRONG!
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Megan constructed triangle ABC. In Megan’s triangle, m∠A is represented by x°, m∠B is 4 times greater than m∠A, and m∠C is 30° less than 5 times m∠A.

m∠A = x°

m∠B = (4x)°

m∠C = (5x − 30)°
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What is the measure of each angle in Megan’s triangle?

1) m∠A = °

A) 21 B) 20 C) 36 D) 30

2) m∠B = °

A) 80 B) 84 C) 120 D) 112

3) m∠C = °

A) 85 B) 75 C) 82 D) 120