Please help to solve these true or false questions asap, thank you :)

Question 3 (1 point) If f is defined on the interval (11, 30), then 1 f (x)dx = = 3o f (x)dx (a) True O'b) False Question 4 (1 point) If f is defined on the interval [9, 20), then (, f ( x)dx = fo f (x)dx + 1of (x) dx a) True O b) False Question 5 (1 point) If f is defined on the interval (7, 30], then ff ( )dx = \\fif (x)dx - / f (x)dx O'a) True (b) False