Creating and solving compound inequalities.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

The focus of a parabola is (-4,-5) and its directrix is y=-1 find the equation

Abari owns 100 shares of stock a and 45 shares of stock b. for the past month, his stocks have been fluctuating inversely. stock a decreased by m cents per share and stock b increased by n cents per share. which equation can be used to find the total change in value of jabari's shares per month?