I need help with a question

Which function has the same domain as y=2x

Jose bought 20 shares of netflix at the close price of $117.98. in a few years, jose sells all of his shares at $128.34. how much money did jose make? a.) $192.50 b.) $207.20 c.) $212.50 d.) $224.60

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol