Which of the following is not a way to represent the solution of the inequality 2(x − 1) less than or equal to 10? (1 point)

a. x less than or equal to 6
b. 6 greater than or equal to x
c. a number line with a closed circle on 6 and shading to the left
d. a number line with a closed circle on 6 and shading to the right

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?