A group of coal miners started out mining at 84 ft. below the surface. They rode an elevator down another 115 ft. and then took a cart down another 15 ft. How far below the surface did the miners end up?

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?