Evaluate the given definite integral by following the step by step process below.

${\displaystyle \underset{0}{\overset{3}{}}}{\displaystyle \underset{0}{\overset{x}{}}}(x+10y)dydx$

a$.$ Evaluate the inner integral with respect to $y$ by writing the antiderivative of the integrand with respect to $y$ in the box.

${\displaystyle \underset{0}{\overset{3}{}}}$

${\displaystyle \underset{0}{\overset{x}{}}}dx$

b$.$ Find the difference of the antiderivative on the bounds and write the statement in the box.

${\displaystyle \underset{0}{\overset{3}{}}}{|}_{\text{d}\text{a}\text{r}\text{r}}dx||$

c$.$ Evaluate this final integral with respect to $x$ to find the value of the double integral.

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