GEOMETRY Given P(12,-2), Q(5,-10), R(-4,10) and S(4,y), find the value of y so that line PQ is perpendicular to line RS

Which expression gives the area of the triangle shown below

What is the slope of the line shown below?

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