Integrate (multiple roots in the bottom)

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Are the corresponding angles congruent? explain why or why not.