Answer:
17 degrees.
There is a right angle and we know that is 90 degrees. 73 degrees has a vertical angle which is 73 degrees. The opposite vertical angle adds up to another angle which gives you 90. Subtract 73 from 90 and you get 17.
y-13 / y-7
cross multiply
y-13 = y-7
collect like terms
y+y =-7+13
2y= 13 -7
2y = 6
divide both sides by 2
2y/ 2y = 6/2
y= 3
I hope this helped
the rectangle is but the line is not because the line has to have another side !
