It would be 75 units in length and 18 units in width.
No because you can have negative numbers
Supplementary angles have a sum of 180 degrees.
If one angle is x, its supplementary angle is 180-x.
We are told that x is 8 less than triple its supplements so:
x=3(180-x)-8
x=540-3x-8
4x=532
x=133
2x squared +1 (-)x squared -7 is
a.) x squared +8
