What is the median of 2, 20, 19, 15, 11, 9, 7, 1

Which expressions are equivalent to -6 + 3m

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'