NEED HELP PLZ

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!