CAN SOMEONE PLEASE HELP ME WITH THIS?

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Hurry which expression is equivalent to 3√x^5y?

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.