Mandy begins cycling west at 30 miles per hour at 11a. m. if liz leaves from same point 20 minutes later bicycling west at 36 mph when will catch mandy

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?

Can someone me with this? i’m not sure what to put for my equations.

Vertical angles must check all that apply