Find h(k+6) if h(x)=15x+6

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

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.

Which of the following circles have their centers in the third quadrant? check all that apply.