Benzene (CHa) burns in air to produce carbon dioxide and liquid water

according to the following reaction

CaH6 () + 7.5 02 (g)

+ 6C02 (g) + 3H20 (1)

AH = - 2973 kJ/mol

If AH; (H20) = -187.6 kJ/mol and AH; (CO2(4) = -393.5 kJ/mol, Calculate AH,

(CoH60)?