Can someone check this i will give out brainliest !

its proofs and theorems in geometry

check the ones in red

Reason 2 should be "corresponding angle postulate" because angle 1 and angle 2 are corresponding angles. They are on the top side of the parallel lines and they are on the same side of the transversal line. The fact we have parallel lines means the two corresponding angles have the same measure.

Reason 3 should be "angle congruence postulate" leading us from the congruent notation shown in statement 2 to the equality notation in statement 3.

In short, you have reason 2 and reason 3 swapped. Reason 5 is in the proper place. 

No because if you do the higher number minus the lower number you will get a positive. if you do it the other way around you will get a negative number