Develop the chemical equation for burning a 50/50 (by volume) mixture of benzene and propane with 90%

Question:

Develop the chemical equation for burning a 50/50 (by volume) mixture of benzene and propane with 90% theoretical air. Calculate the air-fuel ratio, the volume percentage of CO2 in the products, and the dew-point temperature of the products. Assume that CO is the only additional compound in the products.