Please detail the steps behind the solution so I can understand the process. thanks

Q # 1. Thermal decomposition of acetone is proposed to follow the mechanism below: CH3 + CH3CO CH3 + CO Ea = 84 kcal/mol Eg = 10 kcal/mol Initiation CH3COCH CH3CO Propagation CH3 + CH3COCH; CH3COCH Termination CH3 + CH3COCH -> CH3COCH2 + CH4 Ex = 15 kcal/mol CH3 + CH CO Ea = 48 kcal/mol - CH3COCH E = 5 kcal/mol (a) Express the overall reaction rate in terms of the individual rate constants and concentrations of stable species. (b) What is the overall activation energy