How can i find all parts of this question?

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

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

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.