Suppose that f and g are integrable functions and that 12 J f(z)da = -5, *12 f(x)dx = -15 , g(x) dx = 6 Use the properties of the definite integral to find each of the following: g (z ) dx - 8 g(x )dx = 12 9f(x)dr = 12 f(x)dx = 8 12 If(z) - g(x)]da= 12 [5f(x) + 6g(x)]dx =