Answer:
Step-by-step explanation:
first you subtract 7 from 7 and 12
then you get 
(btw the variable always goes first with these problems)
so the final answer would be 
Just add all the way around I will start on the left and go to the right
23+5+5+8+ 5+6+23+19= 94
Got the 8 by getting the bottom line which is 19 and subtracting the two top pieces 5&6
Answer:
x = 82°
y = 59°
z = 39°
Step-by-step explanation:
∠x = 1/2(134° + 30°) = 82°
∠z = 180° - 59° - 82° = 39°
arc DF = 2(39°) = 78°
arc DB + arc DF = 134° + 78° = 212°
draw a diameter down from point B to the opposite side of the circle, call that point P:
arc BDP = 180°
(arc BDF) 212° - 180° = 32° (arc PF)
∠PBG = 1/2(32°) = 16°
∠DEB = 1/2(134°) = 67°
∠DBE = 180° - 59° - 67° = 54°
(∠DBE) 54° - (∠z) 39° + (∠PBG) 16° = (∠PBE) 31°
y = 90°- 31° = 59°
