Which of these figures has rotational symmetry?

What is the upper quartile in the box plot?

Select the lengths in centimeters that would form a right triangle

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1