Answer:
about a half teaspoon
Step-by-step explanation:
3600x10%=360
360x.5=180
3600+180=3780
C 27 degrees
The sum of the angles of a triangle add to 180. Let x be the third angle
62+ 91 +x = 180
Combine like terms
153+x = 180
Subtract 153 from each side
153+x-153 = 180-153
x =27