Carissa predicted she answered 27 questions correctly out of 30 on a test. she actually got 21 answers correct. by what percent was carissa's prediction off?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Sara can take no more than 22 pounds of luggage on a trip. her suitcase weighs 112 ounces. how many more pounds can she pack without going over the limit?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .