Answer:
37
Step-by-step explanation:
Angles inside of triangles always add up to 180. To figure out what Q equals, you add 90 (the right angle) and 155 together to get 245. Subtract 245 from 360, and you get 115. Add 115 to 28 to get 143. Subtract 143 from 180 to get 37.
Hope that this helps!
