Help me please solve this ​

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.