Answer:
6
Step-by-step explanation:
x²-6x=7
.................
.....
67°
Angle 67° and that at H are corresponding this are equal.
Therefore 67+46=113°
180-113=67 as the answer
1 coin is left
5 coins + 4 coins = 9 coins - 8 coins = 1 coin so 1 coin is your answer.