Question

In the figure below, if line r is parallel to line s, m

Answer 1

Answer:
`26^(\circ)`

Explanation:

By the alternate exterior angles theorem,

`3x+5=5x-9\\\\5=2x-9\\\\2x=14\\\\x=7`

This means that
`m\angle B=5(7)-9=\boxed{26^(\circ)}`