hi! please help as soon as possible! i'm reviewing my answers and would like to compare! thank you!

Part B: (30 points) Answer all the questions. Show your work clearly and write answers in the space provided. Report answers with units where possible. 1A. ( 9 points) Determine (a) the rate equation and (b) the rate constant for the hypothetical reaction A+BC given the following initial concentrations and initial rate data. Order with respect to A: Order with respect to B : rate constant with units: Rate law: 18. (6 points) Suppose the rate of reaction is second order for A>B+C. What is the approximate concentration of A( in M ) after 55s if [A]0=0.80M and k=0.035M1s1