Please answer in full detail, and legible handwriting, thank you!

3. Consider two functions f and g on [0, 7] such that / f(x) dx = 9, / g(x) dx = 6, ( f(x) dx = 4, and / g(2) da = 2, Evaluate the following integrals: a ) . [ '5f ( 20 ) do = b ) . L . ( f ( ) + 9 ( x ) ) do = c ) . f ( (x ) - f(x)) da = d ) . [ ( 3f ( x ) - 4g ( 2 ) ) do =