I don't know either. sorry.
You know angles B and C are both 60°, the values of the angles in an equilateral triangle. Since the sum of angles in a quadrilateral is 360°, you have
B + C + x + y = 360°
60° +60° + x + y = 360°
x + y = 240°
y-intercept is -6 (0,-6) and the x-intercept is -3 (-3,0)
The dollar didn't go anywhere! The question isn't correct because the money the bellhop stole is supposed to be subtracted, not added. So if we subtract $2 we have $25, and that's how much money the owner got, the men got $3 back and the bellboy got $2.
So the owner gets $25, the men get $3 and the bellboy gets $2, and that equals 30.
