Kim works as a server in a restaurant. she is serving the table where a group of her friends are eating. her friends always tip 15%. if the cost of the meal is $23.60, how much of a tip will kim earn? a.$2.36 b.$3.54 c.$4.72 d.$27.14

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

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.

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.