4. Mrs. Sparks is a 9th grade Algebra 1 teacher. She teaches three Algebra 1 courses and all the classes recently took a chapter exam.
Below are the scores.

1. Find the mean, median, mode, and range of class 1, 2, and 3

2. Find the standard deviation of class 1, 2, and 3

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

What is the perimeter of square abcd? units units 28 units 37 units

Ined this is due tomorrow and i dont know the answer can you find all the exponents