A woman wants to measure the height of a nearby building. She places a 7 ft pole in the shadow of the building so that the shadow of the pole is exactly covered by the shadow of the building. The total length of the building's shadow is 198 ft, and the pole casts a
shadow that is 5.75 ft long. How tall is the building? Round your answer to the nearest foot. (The figure is not drawn to scale.)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Which linear inequality is represented by the graph?

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?