“Above the door” is the prepositional phrase but I can’t help you you it’s the second part, sorry.
I am pretty sure it is 29 because i did the math and that is what it comes out to
2a) there is a right angle on T so 180-90-37=53
2b) do pythogrean theorem 22sq+ 12sq= 628 sq rt of 628 is 25.06 which is 25
5a) 5*8=10x so X=4
5b) 47*2=94 -57 = 37
Well, the first one is 2/40=1/20. The 2nd one is 1/39. You multiply these to get 1/780.