Question

a(p)= c-k

Answer 1

wt???

Answer 2

:)

Answer 3

If a(p) = c-k then a(p) = -k+c = (c-k)/1 = (c-k)*1 = (c-k)^1 = ((c-k)^2)^(1/2)... there's not much we can do with just that mate ;)