i need help on part B and D please and thank you

The data below were collected for the following reaction at a certain temperature: X2Y2X+Y Determine the order of the reaction at this temperature. zero order first order second order third order What is the half-life for this reaction (at tha initial concentration)? Determine the value of the rate constant at this temperature. What is the concentration of X after 12.0 hours? Express your answer using two significant figures