Point W has coordinates (4, -7). If it is reflected over the y-axis, what are the coordinates of its image?
(4, 7)\
(-4, 7)
(-4, -7)
(4, -7)

Guys i really need or i have to stay late up night

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?

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.