Please make the graphs and be clear about how they were plotted!

Two consumers, A and B have preferences over two goods T and K$.$

$-$ B$\text{'}$s preferences are represented by u$($T$,$K$)=$ min$\{2$K$,$T$\}$

$-$ A$\text{'}$s preferences are represented by u$($T$,$K$)=$ min$\{4$T $+$ K$/2,$ T $+$ K$,$ T$/4+3$K$/2\}$

Suppose that total endowments are $($wT$,$wK$)=(30,15)$ and initially A is endowed with $(1,6).$ The rest is in B$\text{'}$s hands.

Questions:

a$)$ Represent this in an Edgeworth box with O$$ in the lower left corner with T$$ on the x$-$axis and K$$ on the y$-$axis. Find an expression for the contract curve and plot it$.$

b$)$ Find an expression for the core in this economy and plot your answer.