In the BOD test, we obtain the following data

$\backslash$table$[[$Time $($days$),$BOD $($mg$/$L$)],[0\mathrm{.}25,5],[0\mathrm{.}75,15],[1,22],[1\mathrm{.}50,24],[2,37],[2\mathrm{.}5,50],[3,60],[3\mathrm{.}5,62],[4,71],[4\mathrm{.}5,75],[5,77],[5\mathrm{.}25,84]]$

a$)$ Show a graphic of BOD vs$.$ time

b$)$ Determine $L_0$

c$)$ Determine $\%$ error with theoretic value of $Lo($use equation$)$

d$)$ Determine $ki$

$L_0=\frac{y_5}{1-e^{-k_{1}t}}$

Shows the procedure to determine Dissolved Oxygen