lisajesseman4 lisajesseman4 11-12-2020 Mathematics contestada (07.09) Given the following functions f(x) and g(x), solve (f + g)(3) and select the correct answer below: (1 point) f(x) = 2x + 21 g(x) = x - 24 Select one: a. -27 b. -21 c. 6 d. 48