Okay, let's work one by on to complete the table:
a)
Rise: 8ft
Run: 6ft
Pitch: (8*(12/6)):12=(8*2):12=16:12
b)
Rise: (4/(12/24)=(4/0.5)=12
Run:24
Pitch:4:12
c)
Rise:7
Run: (7/3)*12=28
Pitch:3:12
d)
Rise:14 ft 4 in= 43/3 ft
Run:25 ft
Pitch: ((43/3)*(12/25)):12=172/25:12=6.88:12
e)
Rise: 9ft
Run: 15ft
Pitch: (9*(12/15)):12=(36/5):12=7.2:12
f)
Rise: 12.4/(12/20)=62/3=20.667
Run:20
Pitch:12.4:12
g)
Rise:3
Run:(3/1.8)*12=20
Pitch:1.8:12
h)
Rise: 2/(12/30.5)=61/12=5.083
Run: 30ft 6 in = 30.5ft
Pitch: 2:12