Question

HELP PLEASE!!!!!!!!!!!!!!

Answer 1

`55^(\circ)`

Explanation:

By the Vertical Angle theorem,
`\angle 3 = 55^(\circ)`.

By the parallel line theorem,
`\angle 7 = \angle 3 = 55^(\circ).`

So,
`\boxed{\angle 7 = 55^(\circ)}` and we're done!.