Question

Plz help quick quick quick

Answer 1

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Explanation:

Answer 2

Explanation:

`\angle 3` and
`\angle 16` are alternate exterior angles so they are equal to each other, which means

`5x - 30 = 3x + 10 \Rightarrow x = 20`

Solving for the measure of
`\angle 16`, we get

`m\angle 16 = 5(20) - 30 = 70°`

Since
`\angle 12` and
`\angle 16` are supplementary,

`m\angle 12 = 180° - 70° = 110°`