(Solved): pls help Consider two functions \( f \) and \( g \) on \( [3,9] \) such that \( \int_{3}^{9} f(x) d ...

Consider two functions \( f \) and \( g \) on \( [3,9] \) such that \( \int_{3}^{9} f(x) d x=12, \int_{3}^{9} g(x) d x=6, \int_{6}^{9} f(x) d x=4 \), and \( \int_{3}^{6} g(x) d x=4 \). Evaluate the following intograls. a. \( \int_{3}^{6} 7 f(x) d x=56 \) (Simplify your answer.) b. \( \int_{3}^{9}(f(x)-g(x)) d x=6 \quad \) (Simplify your answer.) c. \( \int_{3}^{6}(f(x)-g(x)) d x= \) (Simplify your answer.)