12. Classify the triangle by side length and angle measurement. (1 point) A. equilateral, acute B. isosceles, obtuse C. isosceles, acute D. scalene, obtuse​

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

What is 1/3x5 on anuber line what does it look like on a number line

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.