Disscussion: You paid $35 to join a bowling league. You pay an additional $2 for every game you bowl in the league. Write an equation that describes your total cost for bowling as a function of the number of games you bowl

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.