Can someone please help me with 28,29,and 30.i will mark you BRAINLIEST

Answer:
I can't think of an answer for 29 and 30, but the answer to 28 should be 53.
Step-by-step explanation:
A triangles maximum angle is 180. If angle Q is 90 degrees and angle R is 37. 90+37 is 127. Then, 180-127 is 53.