WILL MARK BRAINLIEST - PROVE THE TRIGONOMETRIC IDENTITY IMAGE ATTACHED NUMBER 10 a) and b)

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

Can someone me and plz do the problem

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x