Help due in 5 min will mark brainliest if correct

The price of a coat increased from $78 to $92. what is the price increase percentage?

State one method by which you can recognize a perfect square trinomial.

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90