Its chemical reaction engineering questions. please help me solve these with full handwritten solution. thank you

An elementary reaction A +B+C is carried out in a constant-volume batch reactor where the following concentration measurements were recorded as a function of time. Table 1: The raw data from constant volume of batch reactor in chemical manufacturing. Time (min) 0 5 9 15 22 30 40 60 CA (mol/L) 1.79 1.55 1.36 1.15 0.95 0.75 0.58 0.33 (a) Derive an integral equation of the reaction above. (3 Marks) (6) Based on the integral equation in (a), plot In C/CAo versus time on a graph paper