Suppose ${\displaystyle \underset{2}{\overset{5}{}}}f(x)dx=2,{\displaystyle \underset{5}{\overset{8}{}}}f(x)dx=-5,$ and ${\displaystyle \underset{5}{\overset{8}{}}}g(x)dx=3.$ Evaluate the integrals in parts a $-d$

a$.{\displaystyle \underset{2}{\overset{5}{}}}7f(x)dx=14($Simplify your answer.$)$

b$.{\displaystyle \underset{5}{\overset{8}{}}}-6g(x)dx=($Simplify your answer.$)$

c$.{\displaystyle \underset{5}{\overset{8}{}}}[6f(x)-g(x)]dx=($Simplify your answer.$)$

d$.{\displaystyle \underset{8}{\overset{5}{}}}[f(x)+9g(x)]dx=($Simplify your answer.$)$

Please do letter D thank you!