$\backslash$table$[[$a$)$ Type of Variable Cost,Ratio of chaage $($TL$.)],[$Direct Materials Cost,$],[$Direct Labor Cost,$9],[$Energy Cost,$3],[$Packing Materials Cost,$5],[,],[$b$)$ Type of Fixed Cost,Monthly Cost$],[$Depreciation$,20000],[$Wages of manngers,$40000],[$Advertisement$,30000],[$Rescarch and Development,$10000]]$

$\backslash$table$[[$C$-$I$)$ Type of Semi$-$Variable Cost,Monthly Fixed Cost,Ratio of change$],[$Indirect Labor Cost,$34000,12],[$Water$,4000,5],[$Repair and Maintenance,$2000,3]]$

$\backslash$table$[[$c$-2)$ Type of Semi$-$Fixed Cost,Monthly Fixed Cost,Ratio of change $($TL$)],[$Wages of Formen,$38000,-],[$Quality Control,,$8]]$

According to these data;

a$)$ What is the total cost function of this company? $(10$ point$)$

b$)$ If the company plans to produce $8000$ units next month, estimate the total cost of next month. $(10$ point$)$

c$)$ Draw the graph of total cost $(10$ point$)$