Answer:
111°
Step-by-step explanation:
The sun of interior angles in a pentagon is 540° so to find the measure of B we gotta add all given measure up then subtract it from 540
150° + 98° + 89° + 92° + B = 540° ➡ B = 111°
1/5 = 9/45. 1/9 = 5/45. Hope this helps
