Let p(x) = x - 2y What is p(p(1,-1),p(-5,-2))?
p(1,-1) = 1 - (-2) = 1 + 2 = 3
p(-5, -2) = -5 - (-4) = -5 + 4 = -1
p(3, -1) = 3 - (-2) = 3 + 2 = \(\boxed{5}\)
