This picture is the question

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

With finding limits of multi variable !

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°