Which set of the side will make a triangle

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it. how many multiple-choice questions are on the test?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Measures of the angle of r, 31 s (x+4) t (3x+9)