NEED MATLAB CODE

Solve the following ODE, $y^{\text{'}}+2y=x+4,y(0)=1$ using

a$.$ Approximate y $(0\mathrm{.}4)$ second order RungeKutta with $h=0\mathrm{.}2$ and $y(0)=0.$

b$.$ Using the previous results use AdamBashforth$($predictor$)$ two step explicit method in conjunction with Adam$-$Moulton two step implicit method $($corrector$)$ to approximate $y(0\mathrm{.}8)$ with $h=0\mathrm{.}01$

c$.$ Use MATLAB to approximate and plot the solution from $x=0$ to $x=1$ using $2nd$ order Runge$-$Kutta with $h=0\mathrm{.}2$ and $y(0)=1$