I see what you are having issues with, lol.
The 2 answers both don't make sense with the graph...
but here are the answers.
a)
20 c = 68 f
35 c = 95 f
b)
50 f = 10 c
104 f = 40 c
c) y intercept = 10,30
D) Gradient = 5,49
formula is
c= x
x/3
f= x
x * 3
Hope this helps! :D
